Question

25x125x32用简便方法怎么计算？

Answer 1

25x125x32
=25*4*125*8
=100*1000
=100000

Answer 2

25x125x32
=25x125x(8x4)
=(25x4)x(125x8)
=100x1000
=100000

看到这种类型的题，你首先要想到拆分看，可以是变加减，也可以是变乘除
25=5*5
125=5*25=5*5*5
32=4*8=4*4*2
在以上的几个中择优而取，也可以取其本身，我们看到5,25,125,4之类的数可以马上想到
4*25=100
125*8=1000
所以我们可以选着将32分为4*8。答案如上

Answer 3

25x125x32
=25x125x(8x4)
=(25x4)x(125x8)
=100x1000
=100000

Answer 4

25x125x32=25X125x（8x4）=（25X4丿x（125X8丿二100X1000=100000

Answer 5

25x125x32
=25x4x125x8
=100x1000
=100000