87-x等于0.12的解方程组ax加by等于2怎么解

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官方公共微信0.36-2.4x=0.12方程怎么解_百度作业帮
0.36-2.4x=0.12方程怎么解
0.36-0.12=2.4X解方程;0.28÷x-0.12=0.78
解方程;0.28÷x-0.12=0.78
解:0.28÷x-0.12=0.78
&&&&&& 0.28÷x=0.12+0.78
&&&&& 0.28÷x=0.9
&&&&& x=0.28÷0.9=14/45=0.3111
其他回答 (3)
0.28÷x-0.12=0.78
0.28÷x=0.78+0.12=0.9
x=0.28÷0.9=14/45
0.28÷x-0.12=0.78
0.28-0.12x=0.78x
0.28÷x-0.12=0.78
0.28÷x=0.9
x=0.28÷0.9=14/45=0.3111
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6 = 2&#47.6÷x=12;4 × 8&#47.642×+7;9 7.9 5.38+7;9 ) 12? (十) 1.5-12.9*2;9 ×3 8× 5&#47. 54的 减去3 除以0.65-(3;6 + 5&#47. 3&#47.8 7;6x(-1/7 × 49&#47.1/8 ÷6 9.8 150×2+3x=690 2x-20=4 3x+6=18 2(2? 7. 4&#47.3.6)×25 ( + - )÷ 12;22 + 1/4 × 9&#47,求这个数.625 5.12×4.8×2.5 72;25 + 3&#47.8×1.3+5;6 27;3 + 5&#47.1000-98= (8)720÷5= (9)0÷47= 17&#47. 3/6=7 3x+7=28 3x-7=26 9x-x=16 24x+x=50 6&#47.8+x)=10.5x+18=3x 5×3-x÷2=8 0;3 还有 (0.3X 1;4=4&#47.5x+8=43 6x-3x=18 1.8=15;2x-8=4 x-5/6 10.50×12= (5)804÷4= (6)134+66= 33;5 × 2/3 + 5&#47.7×2.5÷73) (1;6 26.12×6÷(12-7.9×6.6-1.6 2.2=5. 7/3÷5&#47.5 =7;5 78. 3&#47? 7.7x=3;25÷42= 4/5 × 25&#47.5+6.97×6;7 × 5&#47.5 24×2&#47.32.25 8×(20-1.5x=51 89x-43x=9.125+3.&#47. 50减去12. 8/4-3/9 + 1&#47.5 13;9×3= 5÷1&#47.25)8×7×1.4 3x÷5=4;7×3/6 10.5= 2x 0;9 ×3 7.2×(1;3 45 × 2/4 84.2×1.42 +4.2÷0;24 23.6×8×2;7 22;7&#47.5 x÷1.6 48.1的和是多少;24 23.6×9. 17&#47.3+5.8÷0.6x=33.4-90. 14 × 8&#47.72-3;7 – 10&#47.0.15-(3.3) 6;4/4 × 9&#47.23)×1 2.*11*(101-92) 3;5x=20 2x-6=12 7x+7=14 6x-6=0 5x+6=11 2x-8=10 1/9 ) 9;9 ÷2&#47.972 x÷0. 3/8= 5&#47.9÷X=0.(284+16)×(512-8208÷18) 40. 4/5 + 8 × 11&#47. ( )×0;2×2/8 ÷5= 12×16/11 ÷ 1&#47.4×0;23÷9/27 6. 9 × 5&#47.8×3=0.10、 1/4 21.93= 90-0;5 × 21 31.336÷4.5 5. 4/8 – 3&#47.50+160÷40 35.75 17.6+99= 43×63&#47. 8× 5&#47. 101 × 1&#47.3=6.4×8-2x=6 6x-12.25-6,积是多少.81÷0. 158减去80的差除以13. 95.6×8. 3.6+2 3.4的数是1.875 2.25 6x+12;8 + 1/8 – 3/4 × 9&#47.4+3;276+543*275 276*543-267&#47.18;2+3&#47.5×(4. 5个 除以 与 的和.5=2;7 × 5/9×9&#47.2×3;2 25.25的差;9 + 1&#47.÷32 81;9&#47.6 (2)3. 3 X÷0.25+6;21 80. 72 ÷9 3;16 + 1/7 × 49/14 × 2&#47.2x-0;12×4= 4÷3/8 + ( 1&#47.15 15 5X-2X=18 3X+0.6+36.2÷0;5 + 4&#47.7 62.7 3.6-5;16 + 1/7 – 10/5 + 8 × 11&#47.3=6.5 53,求这个数. 14 × 8&#47.5乘以2;3 14.25÷1;3 29.3 X=3&#47.32×1;14 12.9×1. 5&#47.5+2.36*12.8X=6 12x-8x=4;2-1/2 28.54+2.420+580-64×21÷28 60;14 ×× 2&#47. 6.1+(3-0;9 - 1&#47.5×4、 10÷5&#47.5÷32 0. 8× 5&#47.75×0;5&#47.96×5 403÷13×27 46. 1&#47. 2;2 -( 3&#47.2×3.6-420/7 × 5&#47.1X+3? 8;21 ) 16;9 - 4/19 + 12/5×5/7= 2;3 5;2 30;6x=1.8 75.08的和.6等于6.15+1,差是多少.13 7.4比0.3=7.7x -60. 17/4 14 × 8/3 32.5×4;6 13.9-1.4×0.6-1.9 8;22 + 1&#47.9= 18. 5&#47.6×4 6。 (方程解) (三) 1. 7&#47.6÷110×47+639 3.7-2.8 4;7 × 49/9 ÷2/7×4&#47. 0;19 × 5&#47.3&#47.25+54&#47.25. 3 × 2&#47.4x=16.8×9.25+3. 3.[(7;5 + 4&#47.68×1. 3/3 21.2×1; 2004/9 ×3 4;4 + 3&#47.5 =(7;4 × 8&#47.7;21 ) 19;19 × 5&#47.5.2×1;3 + 1&#47.5减去1.5 0.7+3. 4&#47.52-(6+9;4*3&#47.5) 106.2 5x-45=100 1.4÷[2.15-10.85-2.5=2.2)×2;49 + 3&#47.4×99+3;9 - 1&#47. 0;19 + 12&#47.5+2.25 3;7 × 49&#47,差是多少.75×0;6 + 5/6 – 2&#47.2= 4×0. 9&#47. 5.6)×0、 8×5&#47.7;11÷4= 4/7 – 5/3 × 3&#47. 640+128×45 4.5与4.120-36×4÷18+35 41、 5&#47.13)+4;7 – 10/9×3/5×5&#47. 8/6 28.6 x+13=33 3 - 5x=80 1。(方程解) 1) 3X-(1&#47.25×80-0? 7.74= 10.5 51;5 – 1/7 – 10/9 × 15&#47.5)2×0 4.5 24) 8;6+2&#47、 3/4×5/4×5&#47.4×0.5-12. 6÷ 3/15 19.55)÷8.8×6.12×6÷7,商是多少. 比一个数的 少2.5*2X=15 1.2 12-4x=20 1/3 × 15 7&#47. 6 ×( 1&#47.25×4&#47.55 2 + 0;16 + 1&#47.&#47.1-0;6-19&#47. 1.4x-48=26;2 + 2/6-1/7 × 5/7 83. 1&#47? 7.2=4x 13 9;3 ) 16.125× +0;9&#47.8×0. ( 3;3 8&#47.8)×4.728÷3.2×5= 6-1;4)=7/3 14;49 + 3&#47.2×8 7. ÷32 6;25 + 3&#47. 6÷ 3&#47. 8× 5&#47. 12;7 × 3&#47.2)×2.1+(3-0. 6 ×( 1&#47.7-4;27 3.5)=9.2/5 7. 58.26-(5;5-1&#47. 一个数的2.81/9 + 3&#47.6 3-5x=80 1;8 – 3&#47.6 5.25*3+125*5+25*3+25 2;5+3&#47。(方程解) (十二) 1.8 1.15] ÷2;9 ×3 7;4 × 9&#47.5= 2x+10 0;2 33? 7;7×2 = 41&#47.32×1;5 = 4&#47. 1&#47. 7 × 5&#47. 12× 5/9 + 1&#47.28-1;49 + 3&#47.72 0;7 × 3/4 + 1&#47. 8 × 4/2 30;2×3&#47.2×3.6= 2.9 7.55)÷8.9÷X=0;10÷9&#47. 31 × 5&#47.5+2.6*(50&#47.3 X+8.1 × 5/15 22,求某数;3 32. 9&#47.8 44.5*2.7 9 +4x=40 0. 3 × 2&#47.5 1;9 × 15&#47.0;2 + 2/4 + 3&#47. 7.15] ÷2;4 = 5&#47.8÷2 2(X+X+0;3 + 5/3 × 11/5 + 8 × 11&#47. 0;25 + 3&#47.5+2;3= 2&#47.403 16.85)÷2;6×4 5;2 -( 3/19 + 12&#47.8-6x=54 6.6÷[16×(0;7 - ( 2&#47.52-(6+9.8+2. 101 × 1/3 + 1&#47.31-1. 2;22 + 1/32 – 3&#47.6×(3.125*3+125*5+25*3+25 2.75×1;2 33;3 5/25 + 3&#47.2+x 26×1.3X=5.25) 5.8×3 4. 15,差是多少.5的差.5= (一) 1. 3. 某数的6倍与4 的和等于19.5×2。(方程解) (五) 1.5求这个数. 一个数的40%减去9.06 410-3x=170 3(x+0.403 16. 1/2 101 × 1/3÷5= 0÷8/3 = 2&#47. 7 × 5&#47.2×6+(1;9×3&#47.85-5.9+ 3.3×7+4x=12;14 6 ×( 1/8 23÷(50-12. 1&#47、 2-6&#47.25) 1)127+352+73+44 (2)89+276+135+33 (1)25+71+75+29 +88 (2)243+89+111+57 ÷28×21 920- 690+47×52-398 148+ 360×24÷32+730 ×54 51+()×23 4215+()÷81 (247+18)×27÷25 36-720÷(360÷18) 1080÷(63-54)×80 (528+912)×5-6178 -904 264+318-8280÷69 (174+209)×26- 9000 814-(278+322)÷15 ÷45 ÷38+504 796-5040÷(630÷7) 285+()÷36 1+5&#47. 8;7 - ( 2/7×3&#47.33.32×1.1X+2. 4/6 × 12/7 × 5&#47. 76× +23×25%+0;6 13. 101 × 1&#47.(58+37)÷(64-9×5) 42.5x+6;2+1/8 4.8;7×3/2)]*2&#47. 一个数的65%与 的和是1;9×3/5 16) 3. 一个数的0.7 (1;6 15;15 19.2×1.2 5.1 19;7 – 5/8 ÷6 4/5 85.5 12x-9x=8.178-145÷5×6+42 40.5的积.5*0.15÷0.6+1? (方程解) (四) 1.6+1. 309除以41;276 =543*551-267&#47.25 6.12× 4.3 23;9 ×3 6) 3× 5/6 – 5/5 + 4&#47.6×8.2-0.62] 55;3 + 1&#47.120-144÷18+35 33.85) 3.6 5x+12.6+0.6×1;9 (2) 6.24)(27) 6;7×3&#47.6 4. 7/16 + 2/6 1&#47. 300-4263÷21 4、 23-8&#47.8+2;4 6÷ 3&#47.25 6;36 + 1&#47.120-144÷18+35 36.4×50= 50-298= 2+7÷9= 0;6 + 5&#47.25+0;7 17.2)×2.5 =(5/16 + 1&#47. 5&#47.5倍等于37与8的和. 19.12× 4.5+0;5+3&#47.8×0;276+543*275 =543*(276+275)-267&#47.25×8= 3&#47.102×45-328 2;12×4= 4÷3&#47. 9/6 – 5/9 10;9 + 3/49 + 3/7 25;2= 6×8.75+2;4 = 8.5+2.95÷(64-45) 39.12×6÷7;4-3&#47.95÷(64-45) 36.1 3.2 5. 3/7 × 21/8 =773&#47.5 1) 76. 9&#47. 1;7 × 3&#47.7-52.75×0.812-700÷(9+31×11) (136+64)×(65-345÷23) 38;2+1/32 – 3&#47.8-6.(6.2x+9x=33.97+0;7 – 10&#47. 4. 45 × 2/10-1&#47。(方程解) (七) 1;7×2= 41/2÷4&#47.5)=21 0.25-3 -(2 -1 ) (1)1.1-5;7 × 21/3 13) 10 × 5&#47.8 65x+7=42 9x+4×2;4 ÷ 2&#47.45÷0.25*17. 2;7 = -207= 97×360+3×360= 4&#47.12×6÷(12-7;7 = 21&#47. 一个数的30%比18少6.1*(5&#47.
4.(3.7=5 3;13÷9/2 + 4&#47.(3. 3&#47.2 x+2.8×46+4.5×2.4×4;9×3/18 28-1&#47.273÷x=0. 3&#47. 8/7 × 21&#47.4+3;5+3&#47.36*12;4 × 8&#47. 3. 8&#47.1-5.5×10. 4&#47.5×16―16×0. 2.13)+4.5×9.5 71;14 ×× 2&#47.5-2.1×4;9×3= 5÷1/5= 5/7×14= 2/2 + 4&#47.68×1;3 3.85+14×(14+208÷26) 39.25+0.25-X=0;4 × 8&#47.9+0;6 – 5&#47.6)×0. 6÷ 3/2+90/9 9) 6&#47.125)] 6;5 × 2 1.12×6÷7.36-3 2. 7&#47.&#47.6-0.2×87+0.6÷4= 5;5 – 1&#47. 8 × 4/3 × 15 7&#47.25+50×1;3 8&#47. 14 × 8/16= 12÷9&#47.[(7.(23&#47.5 (27、 1&#47.8= 4&#47.5得商.3+456-52*8 87.64+3.62与0;9 - 1&#47. 5/6 – 2/12+3&#47.52-(6+9;6 – 2&#47. 5&#47.82+0;16 + 1&#47.6 2(x-3)=5,求这个数,求这个数.5)÷1.10.8÷0.5 43.9 48.5)÷1.3的和. (1 7.6)=3;4 ÷ 2&#47.08= 73×1= 0;8 + ( 1/9 + 3&#47.12×6÷(12-7.7 15x =3 3x-8=16 7(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x 7x+5. 14 × 8/5 – 1/3 × 15 27.2 3.2-0.4 0.5+x)=87.3+4.6÷4= 5;3 ) 8 × 4/4 2) 89+456-78 3) 5%+.7=5 3.74 52.85 (3) 1.43= 50.3×6=2;4+8/5 × 2/16 + 2&#47.2 41×(1&#47。(方程解) (十一) 1;9 - 1&#47. 89÷100= 0.7×2.25 1; =(2004/6 + 5&#47. 2;7 22.10.8×741-7 17+ 8 0;3 29;4 ÷ 2&#47.2×6.2÷0. (2 5,除以2.62]= 13.625 2. 6,求这个数.3×0;6 × 12&#47. 9&#47.8= 4&#47.2-6 57. 5&#47,商是多少;2 5&#47.25*17.5+0.37-3.63×10= 4÷10= 17÷ + 2/12 3X=7/5 = 4&#47.8×(3;2 -( 3&#47.35×3;6 1/27÷1/7 4/5 + 8 × 11/2-1&#47.6×1.2×4)= 51;3 + 1&#47.12× 4.2×5= 6-1. 5&#47.24-0;5 ) 8.5)÷1.75 13;3 5&#47.75=-4X+5X X=5.
2.9+0;7 × 5&#47.2×2;20 6;2+1&#47.55 5;5 × 25&#47.299÷0。(方程解) (六) 1.5x=6;3 × 11/7 -2&#47.62] 73.5 7.7x-60.15/5 2.65÷3.2 35;9 7;6 24.6 66.6 7(6.6-1.6)=1.5)÷1;3 + 5/8 ÷6 6;12×4 344&#47.5+(2、 5&#47.27×4 +3;6 – 2&#47.43= 7.5%+6325 88.5*2;5 × 2/5 × 25&#47.6-0.2等于10.4-90.5×(4.6.02-(148. 一个数的 加上1;4-4X 6;7 17. 1&#47.3+1. 3&#47.15-10;9 - 1/3= 2&#47.4+6.5=32.3-2.7 49;8 – 3&#47.25-0;27 12× 5&#47.25 25) 12;5 ) 11.2×3.58 -43 25÷100 4.4 (x-3)÷2=7.65) (4+0.4 4;24 20。(方程解) (二) 1;9+1/4 × 9&#47.375+5;3 + 1/2 + 2&#47.3 3x=x+100 x+4.5-2.5-3.6 20-9x=1;49 + 3/7 3&#47.625 (15. 5/4×4&#47.8×3;19 × 5&#47.5 7;2 + 2&#47. 12× 5/6 18.5商是多少.25+14.5;2= 1&#47.5= 11;3 5.2 6x+18=48 3(x+2.8 26) 9.9 50.7 9.9)+0.85)÷2.25×64 64;9 + 1/6 23.3 5(x+8)=102 x+3x+10=70 3(x+3)=50-x+3 5x+15=60 3,求这个数.375-3.7的 .5)÷x=4 x+19;4 18;9 × 18 – 14 × 2&#47.4×50= 50-298= 2+7÷9= 0.87-0.74 50.25-X=0.2-11÷7-×3= .9×3-(25-2.7=2;7 - ( 2&#47. 某数的 比70多10;3÷5= 0÷8&#47.2减去8;4 8.4 52-x =15 91÷x =1.5 ×( 1&#47.4= 1. 3;4 5. 1&#47.56+0;24 3 × 2&#47.3=10. 12 2. 18 4. 102×45-328 5. 0. 401×19+284 4. 7 × 5&#47. 3 × 2/4)*(3*6+2) 4;7 – 5&#47.5减去一个数的 ;36 + 1&#47.55)÷8,求这个数.27×5.5.875 11.7= 9. 8× 5&#47.5×16―16×0.4) 48×1;8+361/3 × 11&#47. 6;32 – 3&#47.(2-2&#47.5;7 – 5&#47. 6 ×( 1/2 28.(6;7÷2&#47.2)-6 (4)12×6÷7.2x=81. 5&#47.5.728÷3;8 + ( 1/8 + 1/2 -( 3&#47.9)+0;3 26.25×0.46+0;3 X=4/2 + 4&#47. 45 × 2/3×3= 8÷9/7 × 3&#47.5-5x=2 0.75-(2.5.8+2.2x-0;16 + 2&#47.24 42×(25+4)×4 3×63&#47.(3.9+2;3 × 15 27. 9&#47. ÷18 4.5) ÷2.6×(3.45÷0.27×5.4÷[2;3 = 1&#47. (25+ )×4 3.6+36. 403÷13×27 5.4÷[2;6 9&#47.8+95.5×0.1-5;36 + 1&#47.6+1;2003)*(2003+2) =&#47.5×(4;5÷4 11.3+5;9 + 3&#47.6÷4= 5,差是6;3÷3&#47.25与5.52-(6+9;15 17&#47.
2.60625 1.74 70.(6.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.8 65.35×1.25+6;25 + 3/3 × 3&#47.15] ÷2;5×1&#47.1-5. 9/5 – 1&#47.33.5×7.0.2÷0.7-2;4 7) 94÷ 3&#47.(3.35 1;5= 4.25×3;14 ×× 2/5+9/6 26.24 6;4×2/9 × 18 – 14 × 2/4)×0;6= 30;0. 8 × 4/3 × 3&#47.2 3;5 × 25&#47、 2/32 – 3&#47.78 (+681+6)×12 3××6×854 5.4×0.4x-0.32. 9&#47.8+0. 9 × 5&#47.55)÷8.4 4(x-5;7-2/14 14) 1;9 - 4&#47.6×(3;8 + ( 1&#47.8-1;15*3/276 1;21-84 0.25+5. 4/2+3&#47.4÷[2;3 + 1/3+1/14 ×× 2/9 ×3 4;8 = 7/2 101 × 1&#47,积是多少. (1。(方程解) 姓名______学号______ 8.3/4 ÷ 2&#47.8×0.5.3÷3%= 81.5的差是1;9 79;11-4×2;3 45 × 2&#47.5=3. 8/8 + 1&#47.5×10;4 20) 4 × 8&#47.1(x+6)=3;4 + 3&#47.15 15 5X-2X=18 3X 0. 7/9 + 1/2×1/6 31.25×100= 5;9 10;11 23) 1.6-5X=3/4 + 1&#47. 645-45×12 2;6/3×12= 1/7 3/3x+5/9 ) 9;27 6;9 ) 12.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.(23/24 20;4 = 75/5 × 2&#47. 10-2.75×1? 9;6 1/4)+23.2×(1;2÷1/9 - 4/3 × 11&#47.58+42= (2)87-45= (3)125×8= 32.7 69.5×2= 4.+1/6 9&#47.9-1.37= 49;14 ×× 2&#47.4=2x=56 4x-x=48.97+0.4-5;19 × 5&#47.8-6.19×3-0.87-7;5 – 1/16= 12÷9/12×4&#47.8 25000+x=6x X+X X-0;8=96.9)+0;3×3= 8÷9&#47。(方程解) (九) 1.2-6 75. 8/4 3X=4&#47.15-10;9×1&#47.02-(148.8÷0;6 82.5 1.37= 6.2 x 26×1;7×1&#47、 1&#47.4 12x+34x=1 18x-14x=12 23 x-5×14=14 12+34x=56 22-14x=12 23x-14x=14 x+14x=65 23x=14x+14 30x12x-14x=1 x-0.87-0.7 13(x+5)=169 2x-97=34;27 5) 2× 5&#47. 7&#47. 4;6 – 5&#47.5)÷1. 31 × 5&#47.3+1;5 ) 11.9-1.45+6.375×0;5 × 25&#47.728÷3。(方程解) (八) 1;8+236&#47.45 4.5;5 + 4&#47.4X=3;12 3x(-9)+7x(-9 (-54)x1/3 2;2 9.5×2.5)÷1.2+ )×4;21 ) 5/3 + 5&#47.4-5;9×9&#47.62] 53.125×0;4 5.68×1.+. 3/11 ÷ 1&#47.1-1/3 29.8-x=3.25+0;6 28;3 24.2-6 102×4;9 - 1/3 7 × 5&#47.5里减去5.9+0.2×4)= 0.85-5. 4;9 - 4&#47.5*(1.5+2;6 + 5/3 21;3+1/5=10 x+7x=8 9x-3x=6 6x-8=4 5x+x=9 x-8=6x 4&#47.18;4+3/8 ÷6 8) 95/15 21) 7&#47. 45 × 2&#47.4. 3/7 × 5/5 + 8 × 11/2 + 2&#47.25×8= 3&#47.8 30÷x+25=85 1.5 3;5 14;3 ) 13.8×0.6=9;5÷5/7 - ( 2/7 – 5/9+1/21 = 72×125= = 23&#47.6 1,在除以5 .2×1.375+5. ( )×18 3;4 + 1&#47.12×6÷(12-7. 从7;3 × 15 30;2 25.8-1;10+2&#47.2)-6 74.32-2569 86;6 23. 400乘以0;5 3.5+2;3 25. 7;3 + 1/36 + 1/3+1&#47.65 27.344÷3. 3/2+1/2 -( 3&#47.87-0.9 58.625 (2)7.45-5.(58+37)÷(64-9×5) 45. 7 × 5/4 + 1/5 × 21 34;2 + 4/5 × 2&#47.136+6×(65-345÷23) 15-10;7 × 3&#47.6.5×20 23.9多0;8= 6&#47.75÷0.4-5;3 = 1/8= 6/25×4 57;22 + 1&#47.8-1;4)*(3*6+2) 4;4 ÷ 2/8 ÷6 9. 1/9 × 15/8= 7&#47.8-1.6÷8 6.75÷0.2 4. 5/3-1/7 × 49&#47. 600-420÷12 7;4 8.8×2.3÷3%= 286+198= 314-202= 526+301= 223-99= 1&#47. 4&#47. 16×6.75 4x-1;7 × 49&#47.23)×1 63;27 3.9+0;6 31;9 + 3&#47.299÷0.8÷0;5 17.5 52.32;0;5 17.4-(2;3 2.6)×0;11÷4= 4/36 + 1/32 – 3/3÷5/3 26;8 ÷5= 12×16&#47.5-3,求某数.69×4 2;7 – 5&#47./9 × 18 – 14 × 2&#47? 8. 5减去2 与1 的积.8=7.5 172.7.85+14×(14+208÷26) 43;5×3&#47.4)+1;8÷5&#47. 5/6 × 12&#47.12× 4.5.2)×2.*11*(101-92) 3.2×5= 6-1;9 ) 11) 8 × 5/6 × 12&#47.1+17;9= 2&#47.27×4 +3.178-145÷5×6+42 420+580-64×21÷28 37.2×4)= 0;6 – 5&#47.4-5. 5/7 × 5/8= 5/5 ) 10) 8 + ( 1/4 ÷ 2&#47.6 x+5.5-1;11 ÷ 1/14 12.9*2.25×80-0.6)×0.25×2.8×(3;5 + 8 × 11/24+2&#47.75 2.6 67.9*2.9)+0,商是多少.12×4;5÷5&#47.0.75的和.32×1. 9 × 5/24 22) 1;6 15.2×6.8-1;8 – 3/5 81.64+3;7 × 21&#47. 7.12×4.85-5.38+7.3-63/6 – 2/3= 4&#47. 17/7 20.8×(3.6-5.5 64.5 54.2-6 =15. 12× 5/3= 4&#47.4 28×12;3 × 11/11 ÷ 1/2003 (4)276*543-267/8 ÷6 6.8x=0;3 + 1&#47. ×34 4. 3;2 8分之7乘以16分之13乘以16分之13 3分之2乘以28分之15乘以21分之5 7分之5乘以35乘以21分之8 5&#47. 3. 14 2;6 = 20/7 – 10&#47. 6÷ 3/9 × 18 – 14 × 2/7 × 5&#47.7-52.120-36×4÷18+35 44.9+0.5的商加上12.6 45? 8;2)/5&#47.5x=134 10.7-2. 5/11 ÷ 1&#47.5= 12.54+2;3÷3&#47.65×99+1;6 27.5)÷1;6 – 5/27 10;4 + 3&#47.8+95,差是多少.4×(5.4×(2;9 = 2&#47.2÷18 3.5. 17/16 + 1/4 13;4 × 8&#47. 3 × 2/16 + 2/2 -( 3&#47.37+4;3 × 3/25÷42= 4&#47. 9 × 5/4= 75/21 ) 16.5)*1;0.46+0.5;26-2&#47.5÷ 5.32;25 + 3&#47.25 16&#47. 31 × 5&#47.1&#47.6 =8+ (+87)÷87 125×8.2=4x 9.3×1/2 + 2&#47.9-1;3 × 11&#47.3 X÷0.07+3.8 5.5x-x=28 X-5;3 + 1/6 1&#47.2= 4×0.6= 2.2×16+16 3;2+30&#47.[(7;3 ) 16;9 ) 9 × 5&#47.85+3. 9;3 ) 13.756=90 9x-40=5 x÷5+9=21 48-27+5x=31 10. 5/21= 100÷25= 1-0. 31 × 5&#47.25=0;11 ÷ 1/9 × 15/9 + 3&#47.75+2.68×1;24 3 × 2&#47. 5/21 ) 19;9 - 4/4 + 3&#47.5 46. 0;5= 1;8 – 3/19 + 12/2 + 4/9 5&#47.50+160÷40 (58+370)÷(64-45) 32. 7/7 - ( 2/3 + 5/2 + 4&#47.1+16/8 8;5 × 21 3&#47.87-0. 6 ×( 1&#47.13)+4;22 + 1&#47.6、 2&#47.38+7;3= 794-198= 68×25= 43;5 14;14 15;49 + 3/1&#47.96 5;6-1&#47. 101 × 1&#47.7×0;15 22;5 ) 8;5 – 1&#47,商是多少;7 × 21&#47.125-7;8 + 1&#47.9+0.1.2)-6= 14.7 9 +4x =40 2x+8=16 x&#47. ( 6. 8/7 20.75×0.[(7,求这个数? 8. 15.7-2;4 × 9/3 × 3&#47.(6.8=25.9-2456×21 5/3) 1.812-700÷(9+31×11) 41;3 + 1/7 × 3&#47.625 6;5×5/7 19) 5 × 25/32 – 3&#47.43= 47;1/7 × 5/9 + 1&#47.12×4;4 21;4) =176/7 × 5/3;5 ) 7&#47.35+0;3 11;4 + 1/5 12. 比47大13的数乘以5减去4;7 = 2. 12× 5&#47.5 2. 8 × 4/6 × 12&#47.8 42x+25x=134 1.6+36.8-6.8 47.97×6;4 × 9&#47.7-16. 一个数的 比它的 多4.4+0;5 × 2&#47.25×4&#47./14 15.6 9.7×0.4 =19+3 =22 (3)%-695%-12%)*36 77.6×0;19 × 5&#47. 一个数的3倍减去4;8 + ( 1/7 × 21/6 9&#47.1-9036)÷18 163.9+7;21 ) 18) 19 × 18 – 14 × 2/3 11.7×2;3 × 3/6 3&#47.5+x)+x=9.8×(3. 3;9 - 4&#47. 45 × 2/8 + 1&#47.8×5.1)=10.8 +6x=54 6;3&#47? 7;2= 6×8.7=2;19 + 12/32 – 3/7x-8=4 3x-8=30 6x+6=12 3x-3=1 5x-3x=4 2x+16=19 5x+8=19 14-6x=8 15+6x=27 5-8x=4 7x+8=15 9-2x=1 4+5x=9 10-x=8 8x+9=17 9+6x=14 x+9x=4+7 2x+9=17 8-4x=6 6x-7=12 7x-9=8 x-56=1 8-7x=1 x-30=12 6x-21=21 6x-3=6 9x=18 4x-18=13 5x+9=11 6-2x=11 x+4+8=23 7x-12=8 X-5.8×3;4 + 3&#47. 0.6-1÷( )× 7;7 25.6×(3. 7&#47.9×1.25+14.25+3.25×8;7 × 5&#47.375×0.2)-6 56.2+ 1;16 + 2&#47.85-(7.25= 1/8+6;4)*17;36 + 1/7×14= 2&#47.728÷3;2÷1/3 4) 9 × 15/3 24;3]&#47.5+x+21=56 x+2x+18=78 (200-x)÷5=30 (x-140)÷70=4 0.58+370)÷(64-45) 59;4 + 1&#47. (2 6;4 18. ( 4;9 × 15/6 17) 4&#47.9= 8;6
0、 8&#47.25= 1&#47. 6;3 29.1×4.5(x+1;4*2&#47.25 4;5 + 4&#47.15×7/0.7 5;4 = 5&#47.19×3-0;6 + 5&#47.37= 46.96+9.2-11÷7-×3= ;3 ) 15) 2/9 × 4/8÷3/6 24.8-1;4-3&#47.01 0;3 + 1/8 + 1/6 18.125× 3;6= 1.5×2= 4.6除以2.8-6.13)+4.19×3-0;9 × 18 – 14 × 2/5 + 4/6= 1. 5/6 – 2&#47.15] ÷2;6 × 12/3÷1&#47.6 95.26-1.5+2;3 8&#47.8×5.9 68;22 + 1&#47.0.6 (2)3;4 × 8&#47,求这个数.8×54 0.4+2;5 × 21 31;5 31 × 5/19 × 5/3 + 1&#47. 0;6 12) 1&#47.0;19 + 12/3 × 15 30;3/5×3&#47.5=91 4;7 - ( 2/4 = 8.375) 6;3 = 21&#47
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其他6条回答
6 + 5/4 ÷ 2&#47.7-2.6×8×2.74 10.4x-8=2+5xX2+1 9.2)×2.75×0;4 8.2)×2. 9&#47:302.55 5;3 29.2x+4x-2=3x+1-3 14:x 3.62] 13.55)÷8.5+2;3/4=12.35×6.6 67.50+160÷40 (58+370)÷(64-45) 32.3x2+x=0;2+1&#47:10 1;36 + 1&#47.5= 2x+10 0.2×1.6×(3;3÷5= 0÷8&#47.17)+5又(5/2)/5&#47:25=x.4x=16计算.38+7.23
6.&#47.[(7.8= 4&#47.35×1:3&#47.2×1.02-(148;9 × 18 – 14 × 2&#47.4-5;21 = 72×125= = 23&#47.12×4;5= 5&#47.6)×0. 3/1&#47.12×6÷(12-7.5/1. 12× 5/36 + 1/16) [(3/20 6;4= 75/4)&#47.72 0;5 × 2&#47.5= 2x (65)0.5 3;27÷1&#47.120-36×4÷18+35 44.64-3:x 3.9+2.60625 1;9 - 4&#47.13)+4;9 + 3&#47.7×3.4(2x+2x)+2=9(1-2x) 18. 3 (68)X÷0:(10—X)=14:x=3;192右2&#47.3:X=3. X+X=X *4.83-9;8= 7/22 + 1&#47.32、 8×5/19 × 5/4 9 1&#47.2x-0;6 – 2/5+3/6 28:174 100.25×100= 5;7 – 10&#47.9 8.827.3+456-52*8 87.7-2;3÷3&#47.5-12;3 2.(25%-695%-12%)*36 77;9)*(5&#47.8-1.9)+0.8×0;24+2&#47.1+(3-0:1 7、 2&#47.7x -60.(6.38+7:3;6 – 5&#47.2×1.8- 6x=54 (72)6.5 52;5 16) 3;8 + 1&#47.2=4x (66)9.2)-6 14;3 11;9 ×3 6) 3× 5&#47.55)÷8;3×3= 8÷9&#47.2x+x(1+4)=2(3x-4) 19:21&#47:3;5)-(1/7&#47.12×6÷(12-7. (25%-695%-12%)*36 2;1/15) 3又(12&#47:1&#47.8 (11) x2+6x+8=o (12) x2+4x-12=0 (13) x2-10x=-24 (14) x2-8x+15=0 (15) x2+2x-99=0 (16) y2+5y+2=0 (17) 3x2-1=4x (18) x2+2x-2=0 (19) 3x2+4x-7=0 (20) 2y2+8y-1=0 (21) 3y2-2y=1 (22) x(x+8)=16 (23) (4y-3)(3y-1)=4 (24) x2-2.7+150 +3;16 + 2&#47.5.4+6.12×6÷(12-7;3;8= 5/4*3&#47. 7&#47.15;4 21.85-(7:1000=x;6 31. 45 × 2&#47.5xX3+5=2(8x-3) 29;5+3&#47: 1) 76:60=x.62] 73.9=x;21 ) 18) 19 × 18 – 14 × 2&#47.8 +6x=54 6. 4/6 18;4) 7又(3/23÷9/4-3&#47.5=x;49 + 3&#47.23)×1 63.5)609-708+306-108+202-198+497-100
14+15+16+……+45+4697+9996
36.18.6 45、 8&#47.3. 6 ×( 1&#47.8+0.25-X=0:1&#47:8:6124 4分之X=8分之14X分之7=8分之39分之8=X分之212分之X=4分之3 7.85.2=3:650—X&#47. (Y-7)x10+0=(15+90)-15x6 X-5.4-8;8 + ( 1&#47.55)÷8;2 9.0;15)+(75&#47.23)
9.8×0;6 15:x=2;9 - 1&#47.65-(3:14=3.37= 49.9 48;3 = 21/8 – 3/6=458 3X+77=59 4Y-6985=81 87X*13=5 7Z&#47.65×99+1.2-2;24 20. 8× 5&#47.12×6÷7;2)&#47.7-2X3x+2=6-2xX4 26.1-5;9&#47.4
25×1;20)+6又(5/7 17;5 81. 3&#47.4+4x+1=1+3x-2 22.3.5.8-1;3 21;9 + 3/8+6;36 + 1/5 14.85+14×(14+208÷26) 39.5)÷1;13)+4又(6&#47.9÷X=0;7-2&#47.2-6 57.6+0.4-5.3-2x=3(3+2x) 2.6)×0. 3 × 2&#47:X分之0.12×6÷7.5;4 = 8.1-0.3(3X2x-3)=2x+2 12.5+0.8 +6x=54 6;6 + 5&#47.3×1&#47.15-10;9 79.6-6(3-2xX3)=9-3x 27.25 8×(20-1;8 – 3/21= 100÷25= 1-0;3.15] ÷2.9×6.5 71. 5/7×3&#47:45.15X 4(X-3)-2X=18 3X+0.5=3.2x-0.5(2-8x)-4=5(12-2x) 11.21
8×0;4 + 1&#47.1-5;7 – 5/6 24;6)]*12 3&#47.5
5.299÷0. 5&#47:x0.7.5 43.38+1;4-3&#47.2-1&#47.5=2.9×3-(25-2;3 = 1&#47.23)×1 2.5 72.4(2x+3x)+2=1-4x 24.6 (2)3;2÷4&#47. 3 × 2&#47.3=6;2)] 2又(1&#47.15-10. 6÷ 3/5-1/7 × 5/1&#47.(2-2/2 + 2&#47.8×2;3 × 3&#47.5+2.1.5×1.15] ÷2;3 2;15) 2又(1&#47.25×4&#47.5×7.8.4÷[2.10;7 25.8-1.2×5= 6-1;15)解比例、 1&#47.2
12 ×1120 +12 ×2049 4/4+8/5÷4 11;25 + 3&#47.5×2= 4.32-2569 16 123+456-52*8 17 45%+6325 18 1&#47.812-700÷(9+31×11) (136+64)×(65-345÷23) 38.72-3;9 ) 11) 8 × 5&#47.02-(148.10.2×3;7 83、 1/3 ) 13.6 5:x=1/3= 4/4*2&#47.6 (2)3.7 (73)9 +4x =40 (74)0.12×4.0.08= 73×1= 0;4 × 9&#47.75+4;4 ÷ 2/14 15;5 10 3^2*3;7 - ( 2/7×14= 2/6)-(2/8 + ( 1&#47.[(7. 6÷ 3&#47.7 9 +4x =40 (X+8)*3=5X+8 8(X+3)=4X 1&#47:2X=1:603;3)]/6)+3又(3&#47:7 57.doc" target="_blank">http.9+0;14 ×× 2/9 + 3&#47.8×0:12=7;7 × 3/2 + 4&#47://7/8)+7又(8&#47.5+2:3=x;13÷9&#47.450.8 4;2 + 4/6= 30;249.68×1;7 – 5/4+3/49 + 3&#47.5%+6325 88;5 ) 10) 8 + ( 1/9×1/4 × 8&#47.1+(3-0.6 9.25×8= 3/4+8&#47.7 49.3+3x+3=6(2x-4) 23;3 4) 9 × 15/8)+[12-2又(7&#47.0;4)-(3/24+2&#47.2 5x-45=100 1;3 × 11&#47.5 54;2(X+2)=X 3/[(2-2/5 × 2/2+1&#47.33.68×1.2)×2.(3;7 × 49&#47.07+3.6×(3:x=5;2-1/8 4;2+3/5 ) 11;3 × 15 27.28+9. 8&#47. 8 × 4/4 (16/4×5/6 13://xxsx.52-(6+9;9 + 1&#47.4×0;4 × 9/7 19) 5 × 25/27 10. 5&#47.8×6.7 3;3÷5/3+1&#47.2×(1.25×32
(3.5-12.9÷X=0.25×3.5×4.2×1;5/11÷4= 4&#47:3.8-6. 5&#47.28-1;8÷5&#47.8×46+4. 17&#47.2÷0:x=4.82+0;6 + 5&#47.5 1;3×12= 1/15 19.4+58 )
3.8-6. 7/64右3/6 23.4÷[2;2 + 4&#47.83-0.4=2x=56 4x-x=48.5×2= 4.5×16X―16×0.5×2;6 27;14 14) 1.728÷3.403 16.9-1;6-1&#47.12× 4;(3/1&#47.46
17.33.4×0.4-5;3 × 11/8 – 3/9 ×3 7. 5&#47.75×0.65) (4+0.2-6 15.75-8;4 2) 89+456-78 3) 5%+;21)+5又(2&#47.74 52;5)-2又(1/3 ) 15) 2/9 × 4&#47.4×12;4 19 789+456-78 20 45%+54%-36% 2+1&#47. 31 × 5/6 12) 1&#47.7 62.8-1.58+370)÷(64-45) 59;27 5) 2× 5&#47. 7/15*3&#47.38-5;2)]*2/(1&#47.5)÷1;(3/9 9) 6&#47.3-3;5)/11 ÷ 1/4×5/3]/4/9+1&#47. 9/9)&#47.3=6.52-(6+9.5 12. 17&#47.9-1.87-0.x-4x+6=4(2xX6) 25;4*2&#47. 8 × 4/10÷9&#47.32-2569 86;5 + 8 × 11&#47.8×2.87-0:x1;21 ) 19. 14 × 8/93=41 15X+863-65X=54 58Y*55=27489 5x+12=7x-18 2x+3=11-6x 11x+42-2x=100-9x-22 8x-3+2x+1=7x+6-5x 2(x-2)+3(4x-1)=9(x-1)+7 2x-10;8 ÷6 6.56+0;2)-(1/9 ×3 4.13)+4. 1&#47. 9/3 × 15 30.9 68. 3/[1-(3/5×5/27 3.2(2X3x-4X2)=2(2x-3)] 30;3 + 5/2 28;7x-8=4 (30)3x-8=30 (31)6x+6=12 (32)3x-3=1 (33)5x-3x=4 (34)2x+16=19 (35)5x+8=19 (36)14-6x=8 (37)15+6x=27 (38)5-8x=4 (39)7x+8=15 (40)9-2x=1 (41)4+5x=9 (42)10-x=8 (43)8x+9=17 (44)9+6x=14 (45)x+9x=4+7 (46)2x+9=17 (47)8-4x=6 (48)6x-7=12 (49)7x-9=8 (50)x-56=1 (51)8-7x=1 (52)x-30=12 (53)6x-21=21 (54)6x-3=6 (55)9x=18 (56)4x-18=13 (57)5x+9=11 (58)6-2x=11 (59)x+4+8=23 (60)7x-12=8 (61)X-5.6)×0.120-36×4÷18+35 41;5 × 25/7 × 21&#47.7.5=0. 4&#47.25+50×1.5×16―16×0、 23-8&#47.5+9.32×1.5 24) 8.136+6×(65-345÷23) 15-10;4 + 3&#47. 8&#47.5 64.5×0.6×(3.625-(4.45+6.2(x+3x)=9-3x 5;19 + 12&#47.6 48.55-(6;8=1/6) 9又(2&#47:66=5.2 x (64)26×1;2= 1&#47、 2-6/15)*5+7又(7&#47.85-5.38;4 13;5 × 25/4-1)=5 3[4(5x-1)-8]=6 3x+5=8 5x-6=14 7x+8=8x+7 2x+5=3x+12 6x-2=3x+7 33x-10=56 5x-3=6x+8 x-12=3x+16 4(x-9)=7x+3 6(x-3)+7=5x+8 3x+(7-x)=17 3;6=7 (16)3x+7=28 (17)3x-7=26 (18)9x-x=16 (19)24x+x=50 (20)6&#47.403 (67)16.63)
7;5 – 1/7 × 49&#47:0;21 80.com/UploadFiles/689;4 + 3&#47.6)×0;7 – 10/5×5/3 14.8÷0. 6 ×( 1/3.(6:14 14;11 23) 1;6 – 5/4X=2+X 7Y+5=40 Y+Y=16 * X+X=X *(Y-7)x10+0=(15+90)-15x6 x+13=33 3 - 5x=80 102-X=53 5X+3X=100-97+3X 3(2xX2-4x2)=2(2X2+2X) X=300 3-2x=3(3+2x) 3(2xX2-4x2)=2(2X2+2X) 5x+10=7x-6 x+8+x=100 5x*2=7x+72 (x+x+x+20)*2=80-4 x-2*8+7=70-60+1 3x=x+x+56-(10x-8) 3X+189=521 4Y+119=22 3X*189=5 8Z&#47.7=2.5x-0.2= 4×0.6 66.75×0.8+7.5)÷1.12×4.2(8x+2x)-2x=2+8 6:50=x;4)-(1&#47:x=14.3x=15 0.5 53.32:1. 5&#47.72+10.55)
34.9x+x-2=6X-1 8.4+2(5-5x)=4x-2 17.99+0.3÷3%= 286+198= 314-202= 526+301= 223-99= 1/19 × 5/6/6 – 2&#47.9+0.7x -60. 45 × 2&#47.9+0:7=x;3 24.95÷(64-45) 36.4-0.8+0.6 x+13=33 3 - 5x=80 1;9 × 15/5×3/6-19&#47.5)÷1.7=5X 3;6x(-1/26-2/7 – 5&#47.3+2x+21=5x-1 7:1=35.5.2×5= 6-1;3 26. 3&#47. 101 × 1&#47.13)+4. (1-1/4.09+1.6-1.5 1.25-315% 14 7^3+445% 15 12+= 4÷3/6+2&#47:x=18.5;6&#47.5×(4;9)+5又(2&#47.5 ×( 1&#47.57)23.8÷0.1 × 5/3 5.com/UploadFiles/689;10-1&#47.37= 46;8 + 1&#47.4 0.4-(2.25×0;5 + 4&#47.6-1:115.79+9.32×1;22 + 1/X.52-(6+9.8×0;9 - 4&#47.5;6 × 12/4)*(2/32 – 3/7×2= 41/27) (45&#47. 1/4 × 8&#47.19×3-0;9 ) 12. 89÷100= 0;2×3/9 10.5+2;7 × 5/2 25;7)-4又(6/2= 6×8;9+1/15)+2又(1&#47.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.6.178-145÷5×6+42 40;17) 1又(5/9×3/9×9&#47:x 100.(3;7÷2&#47.9+0.0;5 × 21 34.8×(3;9&#47.8×54 0;3) 1。48分之3;7 × 21&#47. 9&#47.2=4x 13 9;7×4/6 x=1;2 -( 3/27 6:8=56. 5/2+3/3 32.9= 18;6= 1.6= 2;32 – 3&#47.4-90. 3/[2-(1/9= 2&#47.37+4.5分之X=9分之215分之1;5 2.001) (1) x2-3x-10=0 (2) (x+3)(x-1)=5 (3) 3x2-16x+5=0 (4) 3x(x+2)=5(x+2) (5) (3x+1)2-5=0 (6) 3(2x2-1)=7x (7) x2+7x+12=0 (8 ) x2-10x+16=0 (9) x2+3x-10=0 (10) x2-6x-40=0 (11) (x+1)(x+3)=15 (12) (y-1)2+2y(y-1)=0 (13) 3x2-7x+2=0 (14) 2x2-11x-21=0 (15) x2+7x+6=0 (16) (3x+2)2=4(x-3)2 (17) y2-17y+30=0 (18) y2-7y-60=o (19) x2+10x-11=0 (20) x2-12x-28=0 (21) t(t+3)=28 (22) 6x2-31x+35=o (23) 5x2+4x=o (24) 6x2-13x-15=0 (25) 9(2x+3)2-4(2x-5)2=0 (26) (2y+1)2+3(2y+1)+2=0 (27) (28) 5m2x2-17mx+14=0(m 0) (29) 10a2x2+13abx-3b2=0(a 0) (1) x2-3x+2=0 (2) x2-3x-2=0 (3) x2+12x+27=0 (4) (x-1)(x+2)=7 (5) (3-t)2+t2=9 (6) (y-2)2=3 (7) (2x+3)2=3(4x+3) (8) y+ (9) (2x-1)(x+3)=4 (10) x3-1=(x-1)3 (11) 3x(x-1)=2-2x (12) x2+2a2=3ax (13) (a2-b2)x2-4abx=a2-b2 (14) (b-c)x2+(c-a)x+(a-b)=o 1.(58+37)÷(64-9×5) 42.6×(3.3(2xX2-4x2)=2(2X2+2X) 5X+3X=100-97+3X 3(2xX2-4x2)=2(2X2+2X) X=300 2(8x+2x)-2x=2+8 3+2x+21=5x-1 9x+x-2=6X-1 4x-8=2+5xX2+1 4-5+2x=2(1+3x)+2 4+2(5-5x)=4x-2 2x+x(1+4)=2(3x-4) 4(2x+2x)+2=9(1-2x) 6-2(2x+2)=2+2x 3+3x+3=6(2x-4) 4+4x+1=1+3x-2 4(2x+3x)+2=1-4x x-4x+6=4(2xX6) 7-2X3x+2=6-2xX4 6-6(3-2xX3)=9-3x 5(2-4x)-3=2-4x+3 5xX3+5=2(8x-3) 2(2X3x-4X2)=2(2x-3)] 25÷X=5 X+9X+1X=11 9-4-X=1 34+X=73 5X+10X=150 4X+5X=90 102-X=53 5X+3X=100-97+3X 3(2xX2-4x2)=2(2X2+2X) X=300 3-2x=3(3+2x) 3(2xX2-4x2)=2(2X2+2X) x+13=33 3 - 5x=80 1:1.12× 4.38+7.5+2.2-6 102×4;5) 4&#47.4x-13=0 (25) 5x+2=3x2 (26) 2x2+ (27) 3y2+1=2 (28) (30) x2+3=2 x (31) x2-3 x+2=0 (32) x2-m(3x-2m+n)-n2=0 (34) x2+x-1=0(精确到0;16 + 1&#47. 9 × 5&#47.4分之7=X分之0.&#47:4x、 5/8 ÷5= 12×16&#47:40=x.8 44;9×3&#47.+/2×2/6 × 12/3+1&#47.5-7;3/3 [(5&#47.7-2:4 78.5×9;5 + 8 × 11&#47.3 23.11;3/9&#47:x 9.5x+4x(1+3)=2x+1 16.(6;9 × 18 – 14 × 2&#47.4+0;4×2&#47. Y+Y=16 *3.8÷0.2×6+(1;16= 12÷9&#47.2+x 26×1.5=X∶3 ⑺1/6∶1/3=1/5∶X ⑻X∶24=3∶8⑼1/2∶1/3=X∶1/2 ⑽12∶X=18∶6 ⑾4∶8=5∶X 方程.6 (1) x2-4=0 (2) x2=256 (3) x2-7=0 (4) x2-9=0 (5) 4y2=9 (6) 16x2-49=0 (7) 2x2-32=0 (8) t2-45=0 (9) (6x-1)2=5 (10) (x+3)=2 (11) (2x-5)2=5 (12) (x+1)2-12=0 (13) (x-5)2-36=0 (14) 3x2-x=15-x (1) x2-4x-3=0 (2) 2x2+3=7x (3) x2-6x+4=0 (4) x2+5x-6=0 (5) 2t2-7t=0 (6) 3x2-1=6x (7) x2+6x+8=0 (8) x2+4x-12=0 (9) x2+10x=24 (10) x2-8x+15=0 (11) x2+2x-99=0 (12) y2+5y+2=0 (13) 3x2-1=4x (14) x2+x-72=0 (15) x2-5x+6=0 (16) x2-0;9×3= 5÷1&#47.9+0;3 + 1&#47.15 (62)15 5X-2X=18 (62)3X 0;3 13) 10 × 5/5x=20 (9)2x-6=12 (10)7x+7=14 (11)6x-6=0 (12)5x+6=11 (13)2x-8=10 (14)1/25 + 3&#47.62] 55.81. 7Y+5=40 2.25-X=0;2=7 3x+7=32-2x 3x+5(138-x)=540 3x-7(x-1)=3-2(x+3) 18x+3x-3=18-2(2x-1) 3(20-x)=6x-4(x-11) -(x&#47. 7 × 5/3÷1/5 3;7 - ( 2&#47.2×5= 6-1.15-10.87-12;19)*(18&#47.7 9.19×3-0;5)&#47. 3 X÷0.2÷0.6.64+3.6×0;3/2×1&#47.5(2-4x)-3=2-4x+3 28.7 9 +4x =40 (X+8)*3=5X+8 8(X+3)=4X 1&#47.47×2+6.6÷4= 5;9 ) 9:X=12F分之52分之1=10分之3;5 7.45+7;4*3/7 22.65 27;6 10.(6.7=5 (63)3.8×(3;13) 2又(1/16 + 2&#47.93= 90-0.doc(1)2x+8=16 (2)x&#47:1/2x-8=4 (15)x-5/6-1&#47、 2&#47:1664=x;4 84.66
21;6) 3又(5&#47.43= 7.5 11;8 27;49 + 3/32 – 3/5 = 4/3+1&#47. 7 × 5&#47.9×1;9 - 4&#47.6÷4= 5.38+88.8 26) 9.618;2+1&#47.10.8×(3;4)*(2&#47.35)×9.5×2.7-3;7 8 2&#47.8-1.43= 47;4)] (3/9×3&#47. 4&#47. 12× 5&#47.3;8) 4又(2&#47:40;8= 6/12×4&#47.3(3x+2)+4(5+3x)=1+4x 15;12 3x(-9)+7x(-9 (-54)x1/9 - 1/4 18;5+3&#47.6+99= 43×63&#47.5)÷1.12× 4;3 ) 16;24 23./9 4 2&#47.0.34+2.25分之X7.52x-(1-0.728÷3.5×(4.2-6 75;2 + 2&#47. 31 × 5&#47.+1&#47.1-5.32×1.25= 1&#47.36-3;2 33;14 × 2&#47. 8&#47.3.5 500.36-(4;5+9&#47.52-17:755:2;3= 2/4 5.50+160÷40 35;3= 794-198= 68×25= 43.(58+37)÷(64-9×5) 45;16 + 2/7 × 5&#47:24 ⑴X∶21=6∶14 ⑵X∶4/5=5/12∶10 ⑶26∶X=1∶2 ⑷2∶120=1∶X ⑸5∶X=10∶15 ⑹7.06=0 (17) 2x2=3-7x (18) y2-6y-6=0 (1) x2-3x+2=0 (2) 2x2+7x=4 (3) x2-2 (4) 2x2-mx-m2=0 (5) 2x2+5x-3=0 (6) t2+2t=5 (7) 6x2-13x-5=o (8) 2y2-4y-1=0 (9) p(p-8)=16 (10) 0.6.2)×2.35×3.9×1.25) 1)127+352+73+44 (2)89+276+135+33 (1)25+71+75+29 +88 (2)243+89+111+57 ÷28×21 920- 690+47×52-398 148+ 360×24÷32+730 ×54 51+()×23 4215+()÷81 (247+18)×27÷25 36-720÷(360÷18) 1080÷(63-54)×80 (528+912)×5-6178 -904 264+318-8280÷69 (174+209)×26- 9000 814-(278+322)÷15 ÷45 ÷38+504 796-5040÷(630÷7) 285+()÷36 1+5&#47. 4&#47:76右1&#47:87=x.625
2;9 7.420+580-64×21÷28 60.12×6÷(12-7.78 (+681+6)×12 3××6×854 5.5-2;17) (12&#47:x x;3 + 1/(5&#47.9)+0:25 55.18.4-5+2x=2(1+3x)+2 20.82+15.85)÷2.254.25.63-(8. 8× 5&#47.1-1/8÷3&#47:18=x.5×(4.12×4.63×10= 4÷10= 17÷1000= 0;3)+1又(4&#47:2=9.8÷0;5=10 (3)x+7x=8 (4)9x-3x=6 (5)6x-8=4 (6)5x+x=9 (7)x-8=6x (8)4/4X=2+X 7Y+5=40 Y+Y=16 * X+X=X *(Y-7)x10+0=(15+90)-15x6 1;8 ÷6 8) 95/9 × 15&#47.8-6.52-(6+9.25-0.7. 14 × 8&#47.1+2;5 78.7x -60.5x+2=4x-1 3x+2(20-x)=50 3x+5=8 5x-6=14 7x+8=8x+7 2x+5=3x+12 6x-2=3x+7 33x-10=56 5a-3=6a+8 x-12=3x+16 4(x-9)=7x+3 6(x-3)+7=5x+8 2(8x+2x)-2x=2+8 3+2x+21=5x-1 9x+x-2=6X-1 4x-8=2+5xX2+1 4-5+2x=2(1+3x)+2 4+2(5-5x)=4x-2 2x+x(1+4)=2(3x-4) 4(2x+2x)+2=9(1-2x) 6-2(2x+2)=2+2x 3+3x+3=6(2x-4) 4+4x+1=1+3x-2 4(2x+3x)+2=1-4x x-4x+6=4(2xX6) 7-2X3x+2=6-2xX4 6-6(3-2xX3)=9-3x 5(2-4x)-3=2-4x+3 5xX3+5=2(8x-3) 2(2X3x-4X2)=2(2x-3)] 25÷X=5 X+9X+1X=11 9-4-X=1 34+X=73 5X+10X=150 4X+5X=90 102-X=53 5X+3X=100-97+3X 3(2xX2-4x2)=2(2X2+2X) X=300 3-2x=3(3+2x) 3(2xX2-4x2)=2(2X2+2X) 简算题;4×4&#47.2×3、 1&#47.7-6.5
125×(8+0.5+0.5+2;4 + 1&#47. 1&#47.4-5;5+3&#47.32;2 -( 3&#47.5x=6.75×0.6-2(2x+2)=2+2x 21.8 47:617.51÷3.[(7;5 6 10-3/4 7) 94÷ 3&#47.5+6.375-6;7 20. 3&#47.60;21 ) 16.13)+4.5 0.87-0. 1&#47。5分之1:1/4 20) 4 × 8&#47.85+3;11 ÷ 1&#47.25 25) 12.3&#47:50=x:3分之17.5 51.5+2.999
5.62] 53;2(X+2)=X 3/3 x+5&#47.2×(1.7 (75)9.8 +6x=54 x+13=33 3 - 5x=80 1.5)÷1;9 + 1/5+3&#47.5:x 3.9 58;24 22) 1;15*3&#47.98
17;2 + 2&#47:1004.4x-0;4=0.5 7./12)] 4又(2&#47.85+14×(14+208÷26) 43.5)2×0 4.19×3-0.37= 6.2×4)= 0.9-1;2 30;2+3&#47.15] ÷2;3 + 1/25÷42= 4&#47.9=5:81=X:1&#47.001) (35) x2+3x-5=0(精确到0;4 × 8/6×4 5;16)+8又(5/6 17) 4/8 ÷6 9.7
1. 9 × 5&#47.24)(27) 6.09-(0:7 55.3=6;6 – 2&#47.(23&#47. 101 × 1&#47.5+2.25×8.18;3 × 3/7 - ( 2&#47.120-144÷18+35 36;10-1&#47.62-4.68×1. 7&#47.(284+16)×(512-8208÷18) 40.8-1;7 × 5/2÷1&#47.5.2)-6 74;3 × 3/3+1/4 + 1/2)]*2&#47.5 46;5 – 1&#47.6 (69)x+13=33 (70)3 - 5x=80 (71)1、 10÷5&#47.4分之X=15分之51.6÷4= 5.25)8×7×1;7 × 3&#47.6=x;14 12;5 + 8 × 11&#47.05分之0;3]/4 × 9/5= 1.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.4-90.32×1.9)+0;3) 9又(1&#47.43= 50;3 + 1/15;2 -( 3&#47.3(x-21)=2x+3x 3;3/5=1&#47、 5/3+1/2)+3又(1&#47.9.74 50.2×4)= 51.85-5.52)x=80 x/3 3.2(2xX3-2+4x)=x+2 13.25678 11 3^3-5 12 4^2-34% 13 3.43-(1.68×1.6;4&#47.15×7&#47.(3.2 (76)12 -4x=20 (77)1&#47:7 18;5 17:6 7.[(7;5/15 21) 7/7 – 10&#47.4x-3x=2+22 4;6 7 [(1&#47.0;3 29;15)-(25&#47.&#47.2)-6 56;21 5 1*8&#47.9-1.728÷3.2×3;5 + 4/5 × 21 31. 5/3 + 5&#47.5=2;5)/4)*(3*6+2) 4;6 26;5 85.7×0;16 + 1&#47.6×4 6.*11*(101-92) 3.4 (78)12 x+34 x=1 (79)18x-14 x= 12 (80)23 x-5×14 = 14 (81)12 +34 x=56 (82)22-14 x= 12 (83)23 x-14 x= 14 (84)x+14 x= 65 (85)23 x=14 x +14 (86)30 x-12 x -14 x=1 5x-2x=30 89x-43x=9.5×20 23.87-0.6-1.1-5;5&#47.15] ÷2;x 21.4÷[2;2+3x&#47.25 1.4×50= 3500÷70= = 2+7÷9= 0;8 8. 8&#47.12×6÷7.(3:0.85-5.12× 4.2×6;6 82:1&#47。8:<a href="http.2×4)= 0;4 = 5&#47.2×3.95÷(64-45) 39;8 + 1&#47.2)-6 (4)12×6÷7:77=x;5 12;5 ) 8;6 × 12/9 - 1&#47.8-6.125*3+125*5+25*3+25 2;9)+6又(7/6 = 20&#47.2÷0;10+2/7 × 5/7= 2.7=2.9 5.55)÷8.8×(3. 3&#47.85)÷2;5÷5&#47.8 65.4 28×12;19 + 12/7 × 5&#47.08)
35 ÷〔78 -(25 +38 )〕1.2X8x+2X=12-2x 10、 3&#47.728÷3.2×2.7-2.812-700÷(9+31×11) 41.3-63&#47.9+0.5.74 70;3-1&#47.2×8 7;6 – 5&#47.32;2.4÷[2:1&#47.9)+0.7 69.178-145÷5×6+42 420+580-64×21÷28 37. 3&#47.120-144÷18+35 33.5)÷1.8×9.299÷0;15 22;7 × 49&#47.4= 1.4) 48×1
1. 3.375+5.75+2.25+6.625 2. 72 ÷9 3. ÷18 4. 3.8×5.25+14.5 5. 6. 7. 50减去12.5的差,除以2.5商是多少? 8. 某数的6倍与4 的和等于19.25,求某数。(方程解) (二) 1. 15.36-3 2. 2.1×4.3+5.7×2.1 3. ( 4. 102×45-328 5. 2.8×3.1+17.6÷8 6. 19.2减去8.5与4.3的和,差是多少? 7. 一个数的30%比18少6,求这个数。 (方程解) (三) 1.
2. 3.5×2.7-52.2÷18 3. 18 4. 3.375×0.97+0.97×6.625 5. (2 6. 5减去2 与1 的积,在除以5 ,商是多少? 7. 某数的 比70多10,求某数? (方程解) (四) 1. 6.54+2.4+3.46+0.6 2. 95.6×1.8+95.6×8.2 3. 600-420÷12 7.344÷3.6-5.4×0.25 4. (2 5. 15.6÷[16×(0.25+0.125)] 6. 158减去80的差除以13,商是多少? 7. 7.5减去一个数的 ,差是6,求这个数。(方程解) (五) 1.
2. 3.9+ 3. ×34 4. 0.15÷0.25+0.75×1.2 5. ( )×0.24 6. 309除以41.25与5.75的和,商是多少? 7. 一个数的 加上1.2等于10,求这个数。(方程解) (六) 1. 2. (25+ )×4 3. 300-4263÷21 4. 0.81÷0.25+5.96 5. 6. 2.6-1÷( )× 7. 5个 除以 与 的和,商是多少? 8. 一个数的 比它的 多4.5,求这个数。(方程解) (七) 1. 12 2. 6.6+2 3. 1.8×3 4. 403÷13×27 5. 1.5×4.2-0.75÷0.25 6. 54的 减去3 除以0.5得商,差是多少? 7. 一个数的65%与 的和是1.5求这个数。(方程解) (八) 1. 14 2. 3.27×4 +3.27×5.7 3. 4. (1.2+ )×4.5÷ 5. ÷32 6. 0.25×80-0.45÷0.9 7. 比47大13的数乘以5减去4.25的差,积是多少? 8. 一个数的3倍减去4.5的差是1.5,求这个数。(方程解) (九) 1. 0.25×2.69×4 2. 4.125× 3.
4. 5. 2.4+2.4×(5.375-3.375) 6. (1 7. 比一个数的 少2.4的数是1.8,求这个数。(方程解) 姓名______学号______ 8. 4.5减去1.5乘以2.5的积,差是多少? (十) 1. 645-45×12 2. ( 3. 0.15+1.2÷0.24-0.45 4. 3.75-(2.35+0.25÷1.25) 5. 76× +23×25%+0.25 6. 10-2.87-7.13 7. 0.96+9.6×9.9 8. 从7.5里减去5.7的 ,差是多少? 9. 一个数的40%减去9.6等于6.4,求这个数。(方程解) (十一) 1. 12.37-3.25-6.75 2. 16×6.8+2.2×16+16 3. 401×19+284 4. 58.7-16.65÷3.7 5. 0.4×4.7×2.5+(2.3+5.3) 6. 3.6除以2.5的商加上12.1的和是多少? 7. 一个数的0.4比0.9多0.5,求这个数。(方程解) (十二) 1. 9.31-1.125-7.875 2. ( )×18 3. 640+128×45 4. 8.2×1.6-0.336÷4.2 5. ( 6. 7. 400乘以0.62与0.08的和,积是多少? 8. 一个数的2.5倍等于37与8的和,求这个数。(方程解)
01是多少? 简便计算 30.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 777×9+1111×3 0.8×[15.5-(3.21+5.79)] (31.8+3.2×4)÷5 31.5×4÷(6+3) 0.64×25×7.8+2.2 2÷2.5+2.5÷2 194-64.8÷1.8×0.9 36.72÷4.25×9.9 ×6 24÷2.4-2.5×0.8 ()÷7 671×15-974 0.8×[7.9-(2+5)] 469×12+1492 405×() 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2] 1. (25%-695%-12%)*36 2. 3/4*3/5+3/4*2/5 3. (1-1/4+8/9)/7/9 4 2/3+1/6/3/24+2/21 5 1*8/15*3/5 6 10-3/4/9/10-1/6 7 [(1/3+1/2)/5/6-1/3]/1/7 8 2/3/5+3/5/2+3/4 9 1/[(2-2/3/1/2)]*2/5 10 3^2*3.25678 11 3^3-5 12 4^2-34% 13 3.25-315% 14 7^3+445% 15 12+9 16 123+456-52*8 17 45%+6325 18 1/2+1/3+1/4 19 789+456-78 20 45%+54%-36% 102×4.5 7.8×6.9+2.2×6.9 5.6×0.25 8×(20-1.25) 1)127+352+73+44 (2)89+276+135+33 (1)25+71+75+29 +88 (2)243+89+111+57 ÷28×21 920- 690+47×52-398 148+ 360×24÷32+730 ×54 51+()×23 4215+()÷81 (247+18)×27÷25 36-720÷(360÷18) 1080÷(63-54)×80 (528+912)×5-6178 -904 264+318-8280÷69 (174+209)×26- 9000 814-(278+322)÷15 ÷45 ÷38+504 796-5040÷(630÷7) 285+()÷36 1+5/6-19/12 3x(-9)+7x(-9 (-54)x1/6x(-1/3) 1.18.1+(3-0.299÷0.23)×1 2.(6.8-6.8×0.55)÷8.5 3.0.12× 4.8÷0.12×4.8 4.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6 5.6-1.6÷4= 5.38+7.85-5.37= 6.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 7.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 8.10.15-10.75×0.4-5.7 9.5.8×(3.87-0.13)+4.2×3.74 10.32.52-(6+9.728÷3.2)×2.5 11.[(7.1-5.6)×0.9-1.15] ÷2.5 12.5.4÷[2.6×(3.7-2.9)+0.62] 13.12×6÷(12-7.2)-6 14.12×6÷7.2-6 15.33.02-(148.4-90.85)÷2.5 1. 9.31-1.125-7.875 2. ( )×18 3. 640+128×45 4. 8.2×1.6-0.336÷4.2 5. ( 6. 7. 400乘以0.62与0.08的和,积是多少? 8. 一个数的2.5倍等于37与8的和,求这个数。(方程解)1.125*3+125*5+25*3+25 2.*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 × 5/6 + 5/6 13. 3/4 × 8/9 - 1/3 14. 7 × 5/49 + 3/14 15. 6 ×( 1/2 + 2/3 ) 16. 8 × 4/5 + 8 × 11/5 17. 31 × 5/6 – 5/6 18. 9/7 - ( 2/7 – 10/21 ) 19. 5/9 × 18 – 14 × 2/7 20. 4/5 × 25/16 + 2/3 × 3/4 21. 14 × 8/7 – 5/6 × 12/15 22. 17/32 – 3/4 × 9/24 23. 3 × 2/9 + 1/3 24. 5/7 × 3/25 + 3/7 25. 3/14 ×× 2/3 + 1/6 26. 1/5 × 2/3 + 5/6 27. 9/22 + 1/11 ÷ 1/2 28. 5/3 × 11/5 + 4/3 29. 45 × 2/3 + 1/3 × 15 30. 7/19 + 12/19 × 5/6 31. 1/4 + 3/4 ÷ 2/3 32. 8/7 × 21/16 + 1/2 33. 101 × 1/5 – 1/5 × 21 34.50+160÷40 35.120-144÷18+35 36.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.95÷(64-45) 39.178-145÷5×6+42 40.812-700÷(9+31×11) 41.85+14×(14+208÷26) 43.120-36×4÷18+35 44.(58+37)÷(64-9×5) 45.(6.8-6.8×0.55)÷8.5 46.0.12× 4.8÷0.12×4.8 47.(3.2×1.5+2.5)÷1.6 48.6-1.6÷4= 5.38+7.85-5.37= 49.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 50.6.5×(4.8-1.2×4)= 51.5.8×(3.87-0.13)+4.2×3.74 52.32.52-(6+9.728÷3.2)×2.5 53.[(7.1-5.6)×0.9-1.15] ÷2.5 54.5.4÷[2.6×(3.7-2.9)+0.62] 55.12×6÷(12-7.2)-6 56.12×6÷7.2-6 57.0.68×1.9+0.32×1.9 58.58+370)÷(64-45) 59.420+580-64×21÷28 60.136+6×(65-345÷23) 15-10.75×0.4-5.7 62.18.1+(3-0.299÷0.23)×1 63.(6.8-6.8×0.55)÷8.5 64.0.12× 4.8÷0.12×4.8 65.(3.2×1.5+2.5)÷1.6 66.3.2×6+(1.5+2.5)÷1.6 67.0.68×1.9+0.32×1.9 68.10.15-10.75×0.4-5.7 69.5.8×(3.87-0.13)+4.2×3.74 70.32.52-(6+9.728÷3.2)×2.5 71.[(7.1-5.6)×0.9-1.15] ÷2.5 72.5.4÷[2.6×(3.7-2.9)+0.62] 73.12×6÷(12-7.2)-6 74.12×6÷7.2-6 75.33.02-(148.4-90.85)÷2.5 1) 76.(25%-695%-12%)*36 77./4*3/5+3/4*2/5 78.1-1/4+8/9/7/9 79.+1/6/3/24+2/21 80./15*3/5 81.3/4/9/10-1/6 82./3+1/2)/5/6-1/3]/1/7 83./5+3/5/2+3/4 84.(2-2/3/1/2)]*2/5 85.+9 86.3+456-52*8 87.5%+6325 88./2+1/3+1/ 75÷〔138÷(100-54)〕 85×(95-1440÷24) 80400-(÷15) 240×78÷(154-115) ×563 〔75-(12+18)〕÷15 2160÷〔(83-79)×18〕 280+840÷24×5 325÷13×(266-250) 85×(95-1440÷24) 58870÷(105+20×2) ×563 81432÷(13×52+78) [37.85-(7.85+6.4)] ×30 156×[(17.7-7.2)÷3] (947-599)+76×64 36×(913-276÷23) [192-(54+38)]×67 [(7.1-5.6)×0.9-1.15]÷2.5 81432÷(13×52+78) 5.4÷[2.6×(3.7-2.9)+0.62] (947-599)+76×64 60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4 1.25×2.4) 0.8×〔15.5-(3.21 5.79)〕 (31.8 3.2×4)÷5 194-64.8÷1.8×0.9 36.72÷4.25×9.9 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2] (136+64)×(65-345÷23) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (58+37)÷(64-9×5) 812-700÷(9+31×11) (3.2×1.5+2.5)÷1.6 85+14×(14+208÷26) 120-36×4÷18+35 (284+16)×(512-8208÷18) 9.72×1.6-18.305÷7 4/7÷[1/3×(3/5-3/10)] (4/5+1/4)÷7/3+7/10 12.78-0÷( 13.4+156.6 ) 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 3.2×(1.5+2.5)÷1.6 85+14×(14+208÷26) (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 (284+16)×(512-8208÷18) 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 120-36×4÷18+35 10.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74 347+45×2-4160÷52 32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5) [(7.1-5.6)×0.9-1.15] ÷2.5 (3.2×1.5+2.5)÷1.6 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 3.2×6+(1.5+2.5)÷1.6 (3.2×1.5+2.5)÷1.6 5.8×(3.87-0.13)+4.2×3.74 33.02-(148.4-90.85)÷2.5 二) 1. 15.36-3 2. 2.1×4.3+5.7×2.1 3. ( 4. 102×45-328 5. 2.8×3.1+17.6÷8 6. 19.2减去8.5与4.3的和,差是多少? 7. 一个数的30%比18少6,求这个数。 (方程解) (三) 1.
2. 3.5×2.7-52.2÷18 3. 18 4. 3.375×0.97+0.97×6.625 5. (2 6. 5减去2 与1 的积,在除以5 ,商是多少? 7. 某数的 比70多10,求某数? (方程解) (四) 1. 6.54+2.4+3.46+0.6 2. 95.6×1.8+95.6×8.2 3. 600-420÷12 7.344÷3.6-5.4×0.25 4. (2 5. 15.6÷[16×(0.25+0.125)] 6. 158减去80的差除以13,商是多少? 7. 7.5减去一个数的 ,差是6,求这个数。(方程解) (五) 1.
2. 3.9+ 3. ×34 4. 0.15÷0.25+0.75×1.2 5. ( )×0.24 6. 309除以41.25与5.75的和,商是多少? 7. 一个数的 加上1.2等于10,求这个数。(方程解) (六) 1. 2. (25+ )×4 3. 300-4263÷21 4. 0.81÷0.25+5.96 5. 6. 2.6-1÷( )× 7. 5个 除以 与 的和,商是多少? 8. 一个数的 比它的 多4.5,求这个数。(方程解) (七) 1. 12 2. 6.6+2 3. 1.8×3 4. 403÷13×27 5. 1.5×4.2-0.75÷0.25 6. 54的 减去3 除以0.5得商,差是多少? 7. 一个数的65%与 的和是1.5求这个数。(方程解) (八) 1. 14 2. 3.27×4 +3.27×5.7 3. 4. (1.2+ )×4.5÷ 5. ÷32 6. 0.25×80-0.45÷0.9 7. 比47大13的数乘以5减去4.25的差,积是多少? 8. 一个数的3倍减去4.5的差是1.5,求这个数。(方程解) (九) 1. 0.25×2.69×4 2. 4.125× 3.
4. 5. 2.4+2.4×(5.375-3.375) 6. (1 7. 比一个数的 少2.4的数是1.8,求这个数。(方程解) 姓名______学号______ 8. 4.5减去1.5乘以2.5的积,差是多少? (十) 1. 645-45×12 2. ( 3. 0.15+1.2÷0.24-0.45 4. 3.75-(2.35+0.25÷1.25) 5. 76× +23×25%+0.25 6. 10-2.87-7.13 7. 0.96+9.6×9.9 8. 从7.5里减去5.7的 ,差是多少? 9. 一个数的40%减去9.6等于6.4,求这个数。(方程解) (十一) 1. 12.37-3.25-6.75 2. 16×6.8+2.2×16+16 3. 401×19+284 4. 58.7-16.65÷3.7 5. 0.4×4.7×2.5+(2.3+5.3) 6. 3.6除以2.5的商加上12.1的和是多少? 7. 一个数的0.4比0.9多0.5,求这个数。(方程解)
1、解比例11:x=3:12
x:10%=3:0.47:2.8 =32:x
12.56:4=x:12
(312.5%-3.125)×()
1÷(1/4-1/6) ×1/915-4.25×2.5
5.4×7.09-5.4×0.09
四、计算题。(共20分) 1、 直接写出得数。(每题0.5分) ÷15 = 0.375×0.625= × = 1÷124 = 124÷4 = 5×20%÷5×20%= 124 -102 = 2、 解下列方程。(每题2分) 12x- x=451 50%x-1.2×12 =1.6 3、 脱式计算。(能简算的要简算。)(每题3分) ( .1 )×2 ÷3 1÷(128-12 )×17.2 12.78-0÷( 13.4+156.6 ) 12457÷〔 14578-( 145+248 )×13.4 4、 列式计算。(每题3分) (1) 57与31 的积,等于一个数的50%,这个数是多少? (2)12与851 的积除以它们的差,商是多少? 五、应用题。(第一题4分,2—5题每题5分) 1宇花小学搞基建,原计划投资400万元,实际比原计划节约了10%,实际节约了多少万元? 2、六(1)班有女生20人,相当于男生的 ,全班共有学生多少人? 3、打一份稿件,甲单独打要18小时完成,乙单独打要12小时完成,两人和打几小时可打这份稿件的 ? 4、修一条路,第一天修了全长的 ,第二天修了30米,这时已修的和剩下的比是3∶4。这条路全长多少米? 5、李老师写一篇稿子,得稿费3600元。按规定,超过1200以上的部分按20%交纳个人所得税。李老师实得稿费多少元? *6、六年级少先队员参加植树活动,男队员植树的棵数比总棵数的一半多30棵,女队员植树的棵数是男队员的 。六年级少先队员一共植树多少棵?(加10分)
(25%-695%-12%)*36 2. 3/4*3/5+3/4*2/5 3. (1-1/4+8/9)/7/9 4 2/3+1/6/3/24+2/21 5 1*8/15*3/5 6 10-3/4/9/10-1/6 7 [(1/3+1/2)/5/6-1/3]/1/7 8 2/3/5+3/5/2+3/4 9 1/[(2-2/3/1/2)]*2/5 10 3^2*3.25678 11 3^3-5 12 4^2-34% 13 3.25-315% 14 7^3+445% 15 12+9 16 123+456-52*8 17 45%+6325 18 1/2+1/3+1/4 19 789+456-78 20 45%+54%-36% 三、计算题:28% 1. 求长方体的表面积和体积(单位:分米)4% a=8 b=5 c=4 2. 脱式计算(能简算要简算)12% 6/7+2/15+1/7+ 13/15 19/21+5/7-3/14 2/3+5/9-2/3+5/9 8/9-(1/4-1/9)- 3/4 3. 求最下列每组数的最大公约数与最小公倍数 4% 24 和36 18、24和40(只求最小公倍数) 4. 文字题 6% 5/9与7/18的和,再减去1/2,结果是多少? 一个数减去7/15与7/30的差,结果是2/3,这个数是多少?(用方程解) X-5.7=2.15
,15 5X-2X=18,
3X+0.7=5 ,X+X ,X-0.8X=6 ,x+5.6=9.4,
52-x =15 ,1÷x =1.3 ,X+8.3=10.7,15x =3, 3x-8=16, 7(x-2)=2x+3 ,3x+9=2718(x-2)=270, 12x=300-4x, 7x+5.3=7.4, 3x÷5=4.8, 30÷x+25=85, 1.4×8-2x=6,
410-3x=170, 3(x+0.5)=21, 0.5x+8=43, 6x-3x=18 ,1.5x+18=3x ,5×3-x÷2=8 ,0.273÷x=0.35, 1.8x=0.972 ,x÷0.756=90, 9x-40=5, x÷5+9=21, 48-27+5x=31, 10.5+x+21=56, x+2x+18=78, (200-x)÷5=30, (x-140)÷70=4 ,0.1(x+6)=3.3×0.4 ,4(x-5.6)=1.6, 7(6.5+x)=87.5 ,(27.5-3.5)÷x=4, x+19.8=25.8,, 5.6x=33.6, 9.8-x=3.8,
75.6÷x=12.6,5x+12.5=32.3 ,5(x+8)=102 ,x+3x+10=70, 3(x+3)=50-x+3 ,5x+15=60, 3.5-5x=2, 0.3×7+4x=12.5 ,x÷1.5-1.25=0.75,, 4x-1.3×6=2.6, 20-9x=1.2×6.25, 6x+12.8=15.8, 150×2+3x=690, 2x-20=4 ,3x+6=18, 2(2.8+x)=10.4, (x-3)÷2=7.5, 13.2x+9x=33.3, 3x=x+100 ,x+4.8=7.2 ,6x+18=48 ,3(x+2.1)=10.5 ,13(x+5)=169, 2x-97=34.2 ,3.4x-48=26.8 ,,42x+25x=134 ,1.5(x+1.6)=3.6 ,2(x-3)=5.8 ,65x+7=42,
9x+4×2.5=91, 4.2 x+2.5x=134 ,10.5x+6.5x=51, 89x-43x=9.2 ,5x-45=100, 1.2x-0.5x=6.3, 23.4=2x=56, 4.5x-x=28, X-5.7=2.15 ,15 5X-2X=18, 3X+0.7=5 ,3.5×2= 4.2+x, 26×1.5= 2x+10 ,0.5×16―16×0.2=4x, 13 9.25-X=0.403,
16.9÷X=0. 3, X÷0.5=2.6, x+13=33, 3 - 5x=80, 1.8 +6x=54, 6.7x -60.3=6.7 ,9 +4x =40,, 2x+8=16, x/5=10 ,x+7x=8, 9x-3x=6 ,,6x-8=4 ,5x+x=9 ,4/5x=20,
2x-6=12, 7x+7=14, 6x-6=0 ,5x+6=11, 2x-8=10, 1/2x-8=4, x-5/6=7, 3x+7=28,
3x-7=26, 9x-x=16, 24x+x=50, 6/7x-8=4, 3x-8=30 ,6x+6=12 ,3x-3=1 ,5x-3x=4 ,2x+16=19 ,5x+8=19 ,14-6x=8 ,15+6x=27 ,5-8x=4 ,7x+8=15 ,9-2x=1 ,4+5x=9 ,10-x=8 ,8x+9=17 ,x+9x=4+7 ,2x+9=17 ,8-4x=6 ,6x-7=12 ,7x-9=8 ,x-56=1, 8-7x=1, x-30=12, 6x-21=21, 6x-3=6, 9x=18 ,4x-18=13, 5x+9=11, 6-2x=11,x+4+8=23, 7x-12=8, X-5.7=2.15 ,15 5X-2X=18, 3X 0.7=5 ,3.5×2= 4.2 x, 16.9÷X=0.3, X÷0.5=2.6 ,3-5x=80 ,1.8-6x=54 ,6.7x-60.3=6.7, 9 +4x=40, 0.2x-0.4+0.5=3.7 ,9.4x-0.4x=16.2, 12-4x=20 ,1/3x+5/6x=1.4 ,
12x+34x=1 ,18x-14x=12 ,23 x-5×14=14 ,12+34x=56, 22-14x=12, 23x-14x=14, x+14x=65 ,23x=14x+14 ,30x12x-14x=1 ,x-0.7x=3.6 ,
4.25×4/25×4 57.26-(5.26-1.5) 106.25+3.85-2.125+3.875 11.9-2456×21 5/11-4×2.75 13.375+5.75+2.25+6.625 (15.1-9036)÷18 163.8×5.25+14.5 172.1×4.3+5.7×2.1 19.102×45-328 2.8×3.1+16/8 23÷(50-12.5) ÷2.5 24×2/5×1/3 25.6÷110×47+639 3.5×2.7-52.2/18 28-1/7×1/5 3.375×0.97+0.97×6.625 6.54+2.4+3.46+0.6 95.6×1.8+95.6×8.2 35.6-420/12×4 344/3.6-5.4×0.25 16/2+30/2+90/6
0.15/0.25+0.75×1.2 41×(1/2+1/3+1/4)×0.24 42×(25+4)×4 3×63/21-84 0.81/0.25+5.96×5 403÷13×27 46.1.5×4.2-0.75÷0.25 3.27×4 +3.27×5.7 (1.2+ 1.8)×4.5÷32 0.25×80-0.45÷0.9 50.÷32 81.2-11÷7-×3= .5×10.6 = 2/7×3/9 ÷2/7 = -207= 97×360+3×360=3.4×99+3.4 4.8×1.01 0.4×(2.5÷73) (1.6+1.6+1.6+1.6)×25 ( + - )÷ 12.3-2.45-5.7-4.55 2 + 0.125×0.25×64 64.2×87+0.642×+7.8×741-7 17+ 8 0.125× +0.5 2.42 +4.58 -43 25÷100 4.25-3 -(2 -1 ) (1)1.25*17.6+36.1/0.8+2.36*12.5 1.25*17.6+36.1/0.8+2.36*12.5 =(5/4)*17.6+36.1*(5/4)+23.6*(50/4) =176/8+361/8+236/8 =773/8=96.625 (2)7.5*2.3+1.9*2.5 7.5*2.3+1.9*2.5 =7.5*(1.9+0.4)+1.9*2.5 =(7.5+2.5)*1.9+7.5*0.4 =19+3 =22 (3)05 05 =()*(2003+2) =03 (4)276*543-267/276+543*275 276*543-267/276+543*275 =543*(276+275)-267/276 =543*551-267/276 1.125*3+125*5+25*3+25 2.*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 × 5/6 + 5/6 13. 3/4 × 8/9 - 1/3 14. 7 × 5/49 + 3/14 15. 6 ×( 1/2 + 2/3 ) 16. 8 × 4/5 + 8 × 11/5 17. 31 × 5/6 – 5/6 18. 9/7 - ( 2/7 – 10/21 ) 19. 5/9 × 18 – 14 × 2/7 20. 4/5 × 25/16 + 2/3 × 3/4 21. 14 × 8/7 – 5/6 × 12/15 22. 17/32 – 3/4 × 9/24 23. 3 × 2/9 + 1/3 24. 5/7 × 3/25 + 3/7 25. 3/14 ×× 2/3 + 1/6 26. 1/5 × 2/3 + 5/6 27. 9/22 + 1/11 ÷ 1/2 28. 5/3 × 11/5 + 4/3 29. 45 × 2/3 + 1/3 × 15 30. 7/19 + 12/19 × 5/6 31. 1/4 + 3/4 ÷ 2/3 32. 8/7 × 21/16 + 1/2 33. 101 × 1/5 – 1/5 × 21 34.50+160÷40 35.120-144÷18+35 36.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.95÷(64-45) 39.178-145÷5×6+42 40.812-700÷(9+31×11) 41.85+14×(14+208÷26) 43.120-36×4÷18+35 44.(58+37)÷(64-9×5) 45.(6.8-6.8×0.55)÷8.5 46.0.12× 4.8÷0.12×4.8 47.(3.2×1.5+2.5)÷1.6 48.6-1.6÷4= 5.38+7.85-5.37= 49.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 50.6.5×(4.8-1.2×4)= 51.5.8×(3.87-0.13)+4.2×3.74 52.32.52-(6+9.728÷3.2)×2.5 53.[(7.1-5.6)×0.9-1.15] ÷2.5 54.5.4÷[2.6×(3.7-2.9)+0.62] 55.12×6÷(12-7.2)-6 56.12×6÷7.2-6 57.0.68×1.9+0.32×1.9 58.58+370)÷(64-45) 59.420+580-64×21÷28 60.136+6×(65-345÷23) 15-10.75×0.4-5.7 62.18.1+(3-0.299÷0.23)×1 63.(6.8-6.8×0.55)÷8.5 64.0.12× 4.8÷0.12×4.8 65.(3.2×1.5+2.5)÷1.6 66.3.2×6+(1.5+2.5)÷1.6 67.0.68×1.9+0.32×1.9 68.10.15-10.75×0.4-5.7 69.5.8×(3.87-0.13)+4.2×3.74 70.32.52-(6+9.728÷3.2)×2.5 71.[(7.1-5.6)×0.9-1.15] ÷2.5 72.5.4÷[2.6×(3.7-2.9)+0.62] 73.12×6÷(12-7.2)-6 74.12×6÷7.2-6 75.33.02-(148.4-90.85)÷2.5 1) 76.(25%-695%-12%)*36 77./4*3/5+3/4*2/5 78.1-1/4+8/9/7/9 79.+1/6/3/24+2/21 80./15*3/5 81.3/4/9/10-1/6 82./3+1/2)/5/6-1/3]/1/7 83./5+3/5/2+3/4 84.(2-2/3/1/2)]*2/5 85.+9 86.3+456-52*8 87.5%+6325 88./2+1/3+1/4 2) 89+456-78 3) 5%+. 3/7 × 49/9 - 4/3 4) 9 × 15/36 + 1/27 5) 2× 5/6 – 2/9 ×3 6) 3× 5/4 + 1/4 7) 94÷ 3/8 – 3/8 ÷6 8) 95/7 × 5/9 + 3/7 × 5/9 9) 6/2 -( 3/2 + 4/5 ) 10) 8 + ( 1/8 + 1/9 ) 11) 8 × 5/6 + 5/6 12) 1/4 × 8/9 - 1/3 13) 10 × 5/49 + 3/14 14) 1.5 ×( 1/2 + 2/3 ) 15) 2/9 × 4/5 + 8 × 11/5 16) 3.1 × 5/6 – 5/6 17) 4/7 - ( 2/7 – 10/21 ) 18) 19 × 18 – 14 × 2/7 19) 5 × 25/16 + 2/3 × 3/4 20) 4 × 8/7 – 5/6 × 12/15 21) 7/32 – 3/4 × 9/24 22) 1、 2/3÷1/2-1/4×2/5 2、 2-6/13÷9/26-2/3 3、 2/9+1/2÷4/5+3/8 4、 10÷5/9+1/6×4 5、 1/2×2/5+9/10÷9/20 6、 5/9×3/10+2/7÷2/5 7、 1/2+1/4×4/5-1/8 8、 3/4×5/7×4/3-1/2 9、 23-8/9×1/27÷1/27 10、 8×5/6+2/5÷4 11、 1/2+3/4×5/12×4/5 12、 8/9×3/4-3/8÷3/4 13、 5/8÷5/4+3/23÷9/11 23) 1.2×2.5+0.8×2.5 24) 8.9×1.25-0.9×1.25 25) 12.5×7.4×0.8 26) 9.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×0 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7.85+3.4) 48×1.25+50×1.25×0.2×8 7.8×9.9+0.78 (+681+6)×12 3××6×854 5.15×7/8+6.1-0.60625 1. 3/7 × 49/9 - 4/3 2. 8/9 × 15/36 + 1/27 3. 12× 5/6 – 2/9 ×3 4. 8× 5/4 + 1/4 5. 6÷ 3/8 – 3/8 ÷6 6. 4/7 × 5/9 + 3/7 × 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 × 5/6 + 5/6 10. 3/4 × 8/9 - 1/3 11. 7 × 5/49 + 3/14 12. 6 ×( 1/2 + 2/3 ) 13. 8 × 4/5 + 8 × 11/5 14. 31 × 5/6 – 5/6 15. 9/7 - ( 2/7 – 10/21 ) 16. 5/9 × 18 – 14 × 2/7 17. 4/5 × 25/16 + 2/3 × 3/4 18. 14 × 8/7 – 5/6 × 12/15 19. 17/32 – 3/4 × 9/24 20. 3 × 2/9 + 1/3 21. 5/7 × 3/25 + 3/7 22. 3/14 × 2/3 + 1/6 23. 1/5 × 2/3 + 5/6 24. 9/22 + 1/11 ÷ 1/2 25. 5/3 × 11/5 + 4/3 26. 45 × 2/3 + 1/3 × 15 27. 7/19 + 12/19 × 5/6 28. 1/4 + 3/4 ÷ 2/3 29. 8/7 × 21/16 + 1/2 30. 101 × 1/5 – 1/5 × 21 31.50+160÷40 (58+370)÷(64-45) 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.95÷(64-45) 36.178-145÷5×6+42 420+580-64×21÷28 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 38.85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 40.120-36×4÷18+35 41.(58+37)÷(64-9×5) 42.(6.8-6.8×0.55)÷8.5 43.0.12× 4.8÷0.12×4.8 44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6 45.6-1.6÷4= 5.38+7.85-5.37= 46.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 48.10.15-10.75×0.4-5.7 49.5.8×(3.87-0.13)+4.2×3.74 50.32.52-(6+9.728÷3.2)×2.5 51.[(7.1-5.6)×0.9-1.15] ÷2.5 52.5.4÷[2.6×(3.7-2.9)+0.62] 53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6 102×4.5 7.8×6.9+2.2×6.9 5.6×0.25 8×(20-1.25) 1)127+352+73+44 (2)89+276+135+33 (1)25+71+75+29 +88 (2)243+89+111+57 ÷28×21 920- 690+47×52-398 148+ 360×24÷32+730 ×54 51+()×23 4215+()÷81 (247+18)×27÷25 36-720÷(360÷18) 1080÷(63-54)×80 (528+912)×5-6178 -904 264+318-8280÷69 (174+209)×26- 9000 814-(278+322)÷15 ÷45 ÷38+504 796-5040÷(630÷7) 285+()÷36 1+5/6-19/12 3x(-9)+7x(-9 (-54)x1/6x(-1/3) 1.18.1+(3-0.299÷0.23)×1 2.(6.8-6.8×0.55)÷8.5 3.0.12× 4.8÷0.12×4.8 4.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6 5.6-1.6÷4= 5.38+7.85-5.37= 6.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 7.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9= 8.10.15-10.75×0.4-5.7= 9.5.8×(3.87-0.13)+4.2×3.74= 10.32.52-(6+9.728÷3.2)×2.5= 11.[(7.1-5.6)×0.9-1.15] ÷2.5= 12.5.4÷[2.6×(3.7-2.9)+0.62]= 13.12×6÷(12-7.2)-6= 14.12×6÷7.2-6 =15.33.02-(148.4-90.85)÷2.5= (一) 1. 3.375+5.75+2.25+6.625 2. 72 ÷9 3. ÷18 4. 3.8×5.25+14.5 5. 6. 7. 50减去12.5的差,除以2.5商是多少? 8. 某数的6倍与4 的和等于19.25,求某数。(方程解) (二) 1. 15.36-3 2. 2.1×4.3+5.7×2.1 3. ( 4. 102×45-328 5. 2.8×3.1+17.6÷8 6. 19.2减去8.5与4.3的和,差是多少? 7. 一个数的30%比18少6,求这个数。 (方程解) (三) 1.
2. 3.5×2.7-52.2÷18 3. 18 4. 3.375×0.97+0.97×6.625 5. (2 6. 5减去2 与1 的积,在除以5 ,商是多少? 7. 某数的 比70多10,求某数? (方程解) (四) 1. 6.54+2.4+3.46+0.6 2. 95.6×1.8+95.6×8.2 3. 600-420÷12 7.344÷3.6-5.4×0.25 4. (2 5. 15.6÷[16×(0.25+0.125)] 6. 158减去80的差除以13,商是多少? 7. 7.5减去一个数的 ,差是6,求这个数。(方程解) (五) 1.
2. 3.9+ 3. ×34 4. 0.15÷0.25+0.75×1.2 5. ( )×0.24 6. 309除以41.25与5.75的和,商是多少? 7. 一个数的 加上1.2等于10,求这个数。(方程解) (六) 1. 2. (25+ )×4 3. 300-4263÷21 4. 0.81÷0.25+5.96 5. 6. 2.6-1÷( )× 7. 5个 除以 与 的和,商是多少? 8. 一个数的 比它的 多4.5,求这个数。(方程解) (七) 1. 12 2. 6.6+2 3. 1.8×3 4. 403÷13×27 5. 1.5×4.2-0.75÷0.25 6. 54的 减去3 除以0.5得商,差是多少? 7. 一个数的65%与 的和是1.5求这个数。(方程解) (八) 1. 14 2. 3.27×4 +3.27×5.7 3. 4. (1.2+ )×4.5÷ 5. ÷32 6. 0.25×80-0.45÷0.9 7. 比47大13的数乘以5减去4.25的差,积是多少? 8. 一个数的3倍减去4.5的差是1.5,求这个数。(方程解) (九) 1. 0.25×2.69×4 2. 4.125× 3.
4. 5. 2.4+2.4×(5.375-3.375) 6. (1 (十一) 1. 12.37-3.25-6.75 2. 16×6.8+2.2×16+16 3. 401×19+284 4. 58.7-16.65÷3.7 5. 0.4×4.7×2.5+(2.3+5.3) 6. 3.6除以2.5的商加上12.1的和是多少? 7. 一个数的0.4比0.9多0.5,求这个数。(方程解) (十二) 1. 9.31-1.125-7.875 2. ( )×18 3. 640+128×45 4. 8.2×1.6-0.336÷4.2 5. ( 6. 7. 400乘以0.62与0.08的和,积是多少? 8. 一个数的2.5倍等于37与8的和,求这个数。(方程解) 1) 3X-(1/2+1/4)=7/12 3X=7/12+3/4 3X=4/3 X=4/9 (2) 6.6-5X=3/4-4X 6.6-0.75=-4X+5X X=5.85 (3) 1.1X+2.2=5.5-3.3X 1.1X+3.3X=5.5-2.2 4.4X=3.3 X=3/4=4/3 还有 (0.5+x)+x=9.8÷2 2(X+X+0.5)=9.8 25000+x=6x X+X X-0.8X=6 12x-8x=4.8 7.5*2X=15 1.2x=81.6 x+5.6=9.4 52-x =15 91÷x =1.3 X+8.3=10.7 15x =3 3x-8=16 7(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x 7x+5.3=7.4 3x÷5=4.8 30÷x+25=85 1.4×8-2x=6 6x-12.8×3=0.06 410-3x=170 3(x+0.5)=21 0.5x+8=43 6x-3x=18 1.5x+18=3x 5×3-x÷2=8 0.273÷x=0.35 1.8x=0.972 x÷0.756=90 9x-40=5 x÷5+9=21 48-27+5x=31 10.5+x+21=56 x+2x+18=78 (200-x)÷5=30 (x-140)÷70=4 0.1(x+6)=3.3×0.4 4(x-5.6)=1.6 7(6.5+x)=87.5 (27.5-3.5)÷x=4 x+19.8=25.8 5.6x=33.6 9.8-x=3.8 75.6÷x=12.6 5x+12.5=32.3 5(x+8)=102 x+3x+10=70 3(x+3)=50-x+3 5x+15=60 3.5-5x=2 0.3×7+4x=12.5 x÷1.5-1.25=0.75 4x-1.3×6=2.6 20-9x=1.2×6.25 6x+12.8=15.8 150×2+3x=690 2x-20=4 3x+6=18 2(2.8+x)=10.4 (x-3)÷2=7.5 13.2x+9x=33.3 3x=x+100 x+4.8=7.2 6x+18=48 3(x+2.1)=10.5 12x-9x=8.7 13(x+5)=169 2x-97=34.2 3.4x-48=26.8 42x+25x=134 1.5(x+1.6)=3.6 2(x-3)=5.8 65x+7=42 9x+4×2.5=91 4.2 x+2.5x=134 10.5x+6.5x=51 89x-43x=9.2 5x-45=100 1.2x-0.5x=6.3 23.4=2x=56 4x-x=48.6 4.5x-x=28 X-5.7=2.15 15 5X-2X=18 3X+0.7=5 3.5×2= 4.2+x 26×1.5= 2x+10 0.5×16―16×0.2=4x 13 9.25-X=0.403 16.9÷X=0. 3 X÷0.5=2.6 x+13=33 3 - 5x=80 1.8 +6x=54 6.7x -60.3=6.7 9 +4x =40 2x+8=16 x/5=10 x+7x=8 9x-3x=6 6x-8=4 5x+x=9 x-8=6x 4/5x=20 2x-6=12 7x+7=14 6x-6=0 5x+6=11 2x-8=10 1/2x-8=4 x-5/6=7 3x+7=28 3x-7=26 9x-x=16 24x+x=50 6/7x-8=4 3x-8=30 6x+6=12 3x-3=1 5x-3x=4 2x+16=19 5x+8=19 14-6x=8 15+6x=27 5-8x=4 7x+8=15 9-2x=1 4+5x=9 10-x=8 8x+9=17 9+6x=14 x+9x=4+7 2x+9=17 8-4x=6 6x-7=12 7x-9=8 x-56=1 8-7x=1 x-30=12 6x-21=21 6x-3=6 9x=18 4x-18=13 5x+9=11 6-2x=11 x+4+8=23 7x-12=8 X-5.7=2.15 15 5X-2X=18 3X 0.7=5 3.5×2= 4.2 x 26×1.5= 2x 0.5×16―16×0.2=4x 9.25-X=0.403 16.9÷X=0.3 X÷0.5=2.6 3-5x=80 1.8-6x=54 6.7x-60.3=6.7 9 +4x=40 0.2x-0.4+0.5=3.7 9.4x-0.4x=16.2 12-4x=20 1/3x+5/6x=1.4 12x+34x=1 18x-14x=12 23 x-5×14=14 12+34x=56 22-14x=12 23x-14x=14 x+14x=65 23x=14x+14 30x12x-14x=1 x-0.7x=3.6 1.3/7 × 49/9 - 4/3 2. 8/9 × 15/36 + 1/27 3. 12× 5/6 – 2/9 ×3 4. 8× 5/4 + 1/4 5. 6÷ 3/8 – 3/8 ÷6 6. 4/7 × 5/9 + 3/7 × 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 × 5/6 + 5/6 10. 3/4 × 8/9 - 1/3 11. 7 × 5/49 + 3/14 12. 6 ×( 1/2 + 2/3 ) 13. 8 × 4/5 + 8 × 11/5 14. 31 × 5/6 – 5/6 15. 9/7 - ( 2/7 – 10/21 ) 16. 5/9 × 18 – 14 × 2/7 17. 4/5 × 25/16 + 2/3 × 3/4 18. 14 × 8/7 – 5/6 × 12/15 19. 17/32 – 3/4 × 9/24 20. 3 × 2/9 + 1/3 21. 5/7 × 3/25 + 3/7 22. 3/14 ×× 2/3 + 1/6 23. 1/5 × 2/3 + 5/6 24. 9/22 + 1/11 ÷ 1/2 25. 5/3 × 11/5 + 4/3 26. 45 × 2/3 + 1/3 × 15 27. 7/19 + 12/19 × 5/6 28. 1/4 + 3/4 ÷ 2/3 29. 8/7 × 21/16 + 1/2 30. 101 × 1/5 – 1/5 × 21 31.58+42= (2)87-45= (3)125×8= 32.50×12= (5)804÷4= (6)134+66= 33.1000-98= (8)720÷5= (9)0÷47= 17/32 – 3/4 × 9/24 3 × 2/9 + 1/3 5/7 × 3/25 + 3/7 3/14 ×× 2/3 + 1/6 1/5 × 2/3 + 5/6 9/22 + 1/11 ÷ 1/2 5/3 × 11/5 + 4/3 45 × 2/3 + 1/3 × 15 7/19 + 12/19 × 5/6 1/4 + 3/4 ÷ 2/3 8/7 × 21/16 + 1/2 101 × 1/5 – 1/5 × 21 3/7 × 49/9 - 4/3 8/9 × 15/36 + 1/27 12× 5/6 – 2/9 ×3 8× 5/4 + 1/4 6÷ 3/8 – 3/8 ÷6 4/7 × 5/9 + 3/7 × 5/9 5/2 -( 3/2 + 4/5 ) 7/8 + ( 1/8 + 1/9 ) 9 × 5/6 + 5/6 3/4 × 8/9 - 1/3 7 × 5/49 + 3/14 6 ×( 1/2 + 2/3 ) 8 × 4/5 + 8 × 11/5 31 × 5/6 – 5/6 9/7 - ( 2/7 – 10/21 ) 5/9 × 18 – 14 × 2/7 4/5 × 25/16 + 2/3 × 3/4 14 × 8/7 – 5/6 × 12/15 17/32 – 3/4 × 9/24 3 × 2/9 + 1/3 5/7 × 3/25 + 3/7 3/14 ×× 2/3 + 1/6 1/5 × 2/3 + 5/6 9/22 + 1/11 ÷ 1/2 8分之7乘以16分之13乘以16分之13 3分之2乘以28分之15乘以21分之5 7分之5乘以35乘以21分之8 5/3 × 11/5 + 4/3 45 × 2/3 + 1/3 × 15 7/19 + 12/19 × 5/6 1/4 + 3/4 ÷ 2/3 8/7 × 21/16 + 1/2 101 × 1/5 – 1/5 × 2 1.25*3+125*5+25*3+25 2.*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 × 5/6 + 5/6 13. 3/4 × 8/9 - 1/3 14. 7 × 5/49 + 3/14 15. 6 ×( 1/2 + 2/3 ) 16. 8 × 4/5 + 8 × 11/5 17. 31 × 5/6 – 5/6 18. 9/7 - ( 2/7 – 10/21 ) 19. 5/9 × 18 – 14 × 2/7 20. 4/5 × 25/16 + 2/3 × 3/4 21. 14 × 8/7 – 5/6 × 12/15 22. 17/32 – 3/4 × 9/24 23. 3 × 2/9 + 1/3 24. 5/7 × 3/25 + 3/7 25. 3/14 ×× 2/3 + 1/6 26. 1/5 × 2/3 + 5/6 27. 9/22 + 1/11 ÷ 1/2 28. 5/3 × 11/5 + 4/3 29. 45 × 2/3 + 1/3 × 15 30. 7/19 + 12/19 × 5/6 31. 1/4 + 3/4 ÷ 2/3 32. 8/7 × 21/16 + 1/21.125*3+125*5+25*3+25 2.*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 × 5/6 + 5/6 13. 3/4 × 8/9 - 1/3 14. 7 × 5/49 + 3/14 15. 6 ×( 1/2 + 2/3 ) 16. 8 × 4/5 + 8 × 11/5 17. 31 × 5/6 – 5/6 18. 9/7 - ( 2/7 – 10/21 ) 19. 5/9 × 18 – 14 × 2/7 20. 4/5 × 25/16 + 2/3 × 3/4 21. 14 × 8/7 – 5/6 × 12/15 22. 17/32 – 3/4 × 9/24 23. 3 × 2/9 + 1/3 24. 5/7 × 3/25 + 3/7 25. 3/14 ×× 2/3 + 1/6 26. 1/5 × 2/3 + 5/6 27. 9/22 + 1/11 ÷ 1/2 28. 5/3 × 11/5 + 4/3 29. 45 × 2/3 + 1/3 × 15 30. 7/19 + 12/19 × 5/6 31. 1/4 + 3/4 ÷ 2/3 32. 8/7 × 21/16 + 1/2 33. 101 × 1/5 – 1/5 × 21 34.50+160÷40 35.120-144÷18+35 36.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.95÷(64-45) 39.178-145÷5×6+42 40.812-700÷(9+31×11) 41.85+14×(14+208÷26) 43.120-36×4÷18+35 44.(58+37)÷(64-9×5) 45.(6.8-6.8×0.55)÷8.5 46.0.12× 4.8÷0.12×4.8 47.(3.2×1.5+2.5)÷1.6 48.6-1.6÷4= 5.38+7.85-5.37= 49.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 50.6.5×(4.8-1.2×4)= 51.5.8×(3.87-0.13)+4.2×3.74 52.32.52-(6+9.728÷3.2)×2.5 53.[(7.1-5.6)×0.9-1.15] ÷2.5 54.5.4÷[2.6×(3.7-2.9)+0.62] 55.12×6÷(12-7.2)-6 56.12×6÷7.2-6 57.0.68×1.9+0.32×1.9 58.58+370)÷(64-45) 59.420+580-64×21÷28 60.136+6×(65-345÷23) 15-10.75×0.4-5.7 62.18.1+(3-0.299÷0.23)×1 63.(6.8-6.8×0.55)÷8.5 64.0.12× 4.8÷0.12×4.8 65.(3.2×1.5+2.5)÷1.6 66.3.2×6+(1.5+2.5)÷1.6 67.0.68×1.9+0.32×1.9 68.10.15-10.75×0.4-5.7 69.5.8×(3.87-0.13)+4.2×3.74 70.32.52-(6+9.728÷3.2)×2.5 71.[(7.1-5.6)×0.9-1.15] ÷2.5 72.5.4÷[2.6×(3.7-2.9)+0.62] 73.12×6÷(12-7.2)-6 74.12×6÷7.2-6 75.33.02-(148.4-90.85)÷2.5 1) 76.(25%-695%-12%)*36 77./4*3/5+3/4*2/5 78.1-1/4+8/9/7/9 79.+1/6/3/24+2/21 80./15*3/5 81.3/4/9/10-1/6 82./3+1/2)/5/6-1/3]/1/7 83./5+3/5/2+3/4 84.(2-2/3/1/2)]*2/5 85.+9 86.3+456-52*8 87.5%+6325 88./2+1/3+1/4 2) 89+456-78 3) 5%+. 3/7 × 49/9 - 4/3 4) 9 × 15/36 + 1/27 5) 2× 5/6 – 2/9 ×3 6) 3× 5/4 + 1/4 7) 94÷ 3/8 – 3/8 ÷6 8) 95/7 × 5/9 + 3/7 × 5/9 9) 6/2 -( 3/2 + 4/5 ) 10) 8 + ( 1/8 + 1/9 ) 11) 8 × 5/6 + 5/6 12) 1/4 × 8/9 - 1/3 13) 10 × 5/49 + 3/14 14) 1.5 ×( 1/2 + 2/3 ) 15) 2/9 × 4/5 + 8 × 11/5 16) 3.1 × 5/6 – 5/6 17) 4/7 - ( 2/7 – 10/21 ) 18) 19 × 18 – 14 × 2/7 19) 5 × 25/16 + 2/3 × 3/4 20) 4 × 8/7 – 5/6 × 12/15 21) 7/32 – 3/4 × 9/24 22) 1、 2/3÷1/2-1/4×2/5 2、 2-6/13÷9/26-2/3 3、 2/9+1/2÷4/5+3/8 4、 10÷5/9+1/6×4 5、 1/2×2/5+9/10÷9/20 6、 5/9×3/10+2/7÷2/5 7、 1/2+1/4×4/5-1/8 8、 3/4×5/7×4/3-1/2 9、 23-8/9×1/27÷1/27 10、 8×5/6+2/5÷4 11、 1/2+3/4×5/12×4/5 12、 8/9×3/4-3/8÷3/4 13、 5/8÷5/4+3/23÷9/11 23) 1.2×2.5+0.8×2.5 24) 8.9×1.25-0.9×1.25 25) 12.5×7.4×0.8 26) 9.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×0 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7.85+3.4) 48×1.25+50×1.25×0.2×8 7.8×9.9+0.78 (+681+6)×12 3××6×854 5.15×7/8+6.1-0.60625 1. 3/7 × 49/9 - 4/3 2. 8/9 × 15/36 + 1/27 3. 12× 5/6 – 2/9 ×3 4. 8× 5/4 + 1/4 5. 6÷ 3/8 – 3/8 ÷6 6. 4/7 × 5/9 + 3/7 × 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 × 5/6 + 5/6 10. 3/4 × 8/9 - 1/3 11. 7 × 5/49 + 3/14 12. 6 ×( 1/2 + 2/3 ) 13. 8 × 4/5 + 8 × 11/5 14. 31 × 5/6 – 5/6 15. 9/7 - ( 2/7 – 10/21 ) 16. 5/9 × 18 – 14 × 2/7 17. 4/5 × 25/16 + 2/3 × 3/4 18. 14 × 8/7 – 5/6 × 12/15 19. 17/32 – 3/4 × 9/24 20. 3 × 2/9 + 1/3 21. 5/7 × 3/25 + 3/7 22. 3/14 × 2/3 + 1/6 23. 1/5 × 2/3 + 5/6 24. 9/22 + 1/11 ÷ 1/2 25. 5/3 × 11/5 + 4/3 26. 45 × 2/3 + 1/3 × 15 27. 7/19 + 12/19 × 5/6 28. 1/4 + 3/4 ÷ 2/3 29. 8/7 × 21/16 + 1/2 30. 101 × 1/5 – 1/5 × 21 31.50+160÷40 (58+370)÷(64-45) 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.95÷(64-45) 36.178-145÷5×6+42 420+580-64×21÷28 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 38.85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 40.120-36×4÷18+35 41.(58+37)÷(64-9×5) 42.(6.8-6.8×0.55)÷8.5 43.0.12× 4.8÷0.12×4.8 44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6 45.6-1.6÷4= 5.38+7.85-5.37= 46.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 48.10.15-10.75×0.4-5.7 49.5.8×(3.87-0.13)+4.2×3.74 50.32.52-(6+9.728÷3.2)×2.5 51.[(7.1-5.6)×0.9-1.15] ÷2.5 52.5.4÷[2.6×(3.7-2.9)+0.62] 53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6
x;3=9;3&#92;1
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