=(0.4乘0.25)乘(0.8乘125)=0.1乘100=10
2.5*1.25*0.32=2.5*1.25*0.4*0.8=2.5*0.4*1.25*0.8=1*1=1
根据乘法交换律,把0.32拆开来,就有(2.5*0.4)*(0.8*1.25)=1*1=1
1.25x0.32x2.5=1.25x0.8x0.4x2.5=(1.25x0.8)x(0.4x2.5)=1x1=1如果我的答案对您有帮助,请点击下面的“采纳答案”按钮,送咱一朵小红花鼓励下吧!祝您生活愉快!谢谢!如有不懂,可继续追问!
0.32*2.5*12.5=(0.4*2.5)*(0.8*12.5)=1*10=10
2.5*1.25*0.32=2.5*1.25*0.4*0.8=(2.5*0.4)*(1.25*0.8)=1*1=1
0.32x12.5x2.5 =0.4x0.8x12.5x2.5 =0.4x2.5 x(0.8x12.5)=1x10=10
吧0.32分成0.8和0.4
0.64
12.5*0.32*2.5简便计算12.5*0.32*2.5=12.5*0.8*0.4*2.5=10*1=10