脱成华为云计算部门怎么样68+24x40怎么样

我会脱式计算.0.325÷2.5+3.97     
2.16÷3.6÷0.5
18.4+4.3×2.8        
0.8×24.5-7.5
0.89×99+0.89        
2.78+0.5×68._百度作业帮
我会脱式计算.0.325÷2.5+3.97     
2.16÷3.6÷0.5
18.4+4.3×2.8        
0.8×24.5-7.5
0.89×99+0.89        
2.78+0.5×68.
我会脱式计算.0.325÷2.5+3.97     &&&&&&
2.16÷3.6÷0.5
18.4+4.3×2.8        &&
0.8×24.5-7.5
0.89×99+0.89        &&
2.78+0.5×68.
①0.325÷2.5+3.97=0.13+3.97=4.1;②2.16÷3.6÷0.5=3.6÷0.5=7.2;③18.4+4.3×2.8=18.4+12.04=30.44;④0.8×24.5-7.5=19.6-7.5=12.1;⑤0.89×99+0.89=0.89×(99+1)=0.89×100=89;⑥2.78+0.5×68=2.78+34=36.78.
本题考点:
小数四则混合运算;运算定律与简便运算.
问题解析:
运用四则混合运算的顺序进行计算即可,含有两级运算,先做乘除后做加减.小学四年级脱式计算_百度知道
小学四年级脱式计算
提问者采纳
出题目是吗?(1)29X11-29=(2)59-23+41-17=(3)100X2+100X5=(4)144/6X73=
(/表示除以,以下同)(5)27X40+986=(6)286+24X66=(7)=(8)14X60=(9)21X60=(10)35X60=(11)7X30=(12)32X103-32x3=(13)195x29+195=(14)39x105+105=(15)28x70=(16)17x20=(17)34x70=(18)28x30=(19)157x43-157x3=(20)315x40=(21)408x36+408x4=(22)450x300=(23)456/6=(24)343/7=(25)230x40=(26)120X24=(27)1.2×2.5+0.8×2.5 =(28)8.9×1.25-0.9×1.25 =(29)12.5×7.4×0.8 =(30)9.9×6.4-(2.5+0.24)=(31)6.5×9.5+6.5×0.5 =(32)0.35×1.6+0.35×3.4 =(33)0.25×8.6×4 =(34)6.72-3.28-1.72= (35)0.45+6.37+4.55 (36)5.4+6.9×3-(25-2.5)=(37)2×0 =(38)4.8×46+4.8×54 =(39)0.8+0.8×2.5= (40)1.25×3.6×8×2.5-12.5×2.4 =(41)28×12.5-12.5×20 =(42)23.65-(3.07+3.65) =(43)(4+0.4×0.25)8×7×1.25 =(44)1.65×99+1.65= (45)27.85-(7.85+3.4)= (46)48×1.25+50×1.25×0.2×8 =(47)7.8×9.9+0.78 =(48)(+681+6)×12 =(49)3××6×854 =(50)5.15×7/8+6.1-0.60625 =(51)50+160÷40 (58+370)÷(64-45)= (52)120-144÷18+35= (53)347+45×2-4160÷52 =(54)(58+37)÷(64-9×5)= (55)95÷(64-45)= (56)178-145÷5×6+42 =(57)420+580-64×21÷28 =(58)812-700÷(9+31×11)=(59)38.85+14×(14+208÷26)= (60)(6.8-6.8×0.55)÷8.5 =(61)0.12× 4.8÷0.12×4.8 =(62)(3.2×1.5+2.5)÷1.6= (63)3.2×(1.5+2.5)÷1.6= (64)45.6-1.6÷4= 5.38+7.85-5.37= (65)46.7.2÷0.8-1.2×5= 6-1.19×3-0.43= (66)47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 (67)48.10.15-10.75×0.4-5.7 (68)49.5.8×(3.87-0.13)+4.2×3.74 =(69)50.32.52-(6+9.728÷3.2)×2.5 =(70)51.[(7.1-5.6)×0.9-1.15] ÷2.5 =(71)52.5.4÷[2.6×(3.7-2.9)+0.62] =(72)53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6 =(73)102×4.5 -2X4.5=(74)7.8×6.9+2.2×6.9 =(75)5.6×0.25= (76)8×(20-1.25)= (77)127+352+73+44= (78)89+276+135+33 =(79)25+71+75+29 +88 (80)243+89+111+57 =(81)÷28×21= (82)920- =(83)690+47×52-398 =(84)148+ =(85)360×24÷32+730 =(86)×54 =(87)51+()×23 =(88)4215+()÷81= (89)(247+18)×27÷25 =(90)36-720÷(360÷18) =(91)1080÷(63-54)×80 =(92)(528+912)×5-6178 =(93)-904 =(94)264+318-8280÷69 =(95)(174+209)×26- 9000 =(96)814-(278+322)÷15 =(97)÷45 =(98)÷38+504 =(99)796-5040÷(630÷7)= (100)285+()÷36=100题,花了不少时间,希望能采纳,谢谢!
提问者评价
谢谢,不过最好是四则运算。
3.25*13.7*4.4 =(3+0.25)*(4+0.4)*13.7 =(3*4+3*0.4+0.25*4+0.25*0.4)*13.7 =(12+1.2+1+0.1)*13.7 =12*13.7+1.2*13.7+13.7+1.37 =10*13.7+2*13.7+13.7+0.2*13.7+13.7+1.37 =137+27.4+13.7*2+0.2*13.7+1.37 =137+1.37+27.4+27.4+2.74 =138.37+54.8+2.74 =138.37+2.74+54.8 =141.11+54.8 =195.91
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出门在外也不愁脱式计算.3240÷[24×(83-68)](680+68×45)÷55_百度知道
脱式计算.3240÷[24×(83-68)](680+68×45)÷55
脱式计算.3240÷[24×(83-68)](680+68×45)÷55.
提问者采纳
(1)3240÷[24×(83-68)]=3240÷[24×15]==9;(2)(680+68×45)÷55=(680+3060)÷55=3740÷55=68.
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