0.25乘33+2.5乘0.6+0.25的2.4 0.25怎样简便运算算

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0.25乘3.2简便运算
&& 0.25×3.2×0.125=0.25×4×0.8×0.125=v0.25×4w×v0.8×0.125w=1×0.1=0.10.25×3.2=0.25×4×0.8=1×0.8=0.8 向左转|向右转1.25×3.2×0.25=1.25×(0.8×4)×0.25&&&&&&&&&&&&&&&&&&&&...12.5*0.8*0.25*4=10*1=10(3.2=0.8*4)0.25x3.2x4=0.25x4x3.2=1x3.2=3.2运用的是乘法交换率哦.15÷12.5 =15×8÷(12.5×8) =120÷100 =1.2 12.5×3.2×0.25 =(12.5×0.8)×(4×0.25) =10×1 =100.25×12.5×3.2 =0.25x4x12.5x0.8 =1x10 =101.25乘0.25乘3.2 =1.25乘3.2乘0.25 =4乘0.25 =10.75*0.25*3.2 =0.75*0.25*4*0.8 =0.75*1*0.8 =0.6
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大类导航: |1.6×0.25×12.5简便计算 33×1.03简便计算 5.6×99+56×0.1简便计算 6.83×101-6.83简便计算
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1.6×0.25×12.5=4*0.4*0.25*12.5=4*0.25*0.4*12.5=0.4*12.5=533×1.03=33*1+33*0.03=33+0.99=33.995.6×99+56×0.1=5.6*99+5.6*10*0.1=5.6*(99+1)=5.6*100=5606.83×101-6.83=6.83*(101-1)=6.83*100=683
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1.6×0.25×12.5简便计算 =4×0.25×0.4×12.5=1×5=5;33×1.03简便计算=33×(1+0.03)=33+0.99=33.99; 5.6×99+56×0.1简便计算 =5.6×(99+1)=5.6×100=560;6.83×101-6.83...
1.6×0.25×12.5=(1+2.5)×0.4x4×0.25=(1+2.5)×0.4x(4×0.25)=(1+2.5)×0.4x(1)=1x0.4+2.5x0.4=0.4+1=1.433乘以1.03=33*(1+0.03)=33*1+33*0.03=33+0.99=33.99...
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