如题所述
一般来讲的话,8×125=1000,4×25=100,所以,只要看到125就和八组合起来,看,看到25就和四组合起来,那么这个里面没有4,我们就创造出来,1.6=4乘以多少?一点6=4×0点四,然后我们用4×0.25,等于一,零点8×125=100,然后100×1=100,100×0点4=40,那么最后的结果就是40
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第1个回答 2020-09-08
0.25x0.8ⅹ1.25X1.6
=0.25x1.6X(0.8x1.25)
=0.25x4x0.4x1
=1x0.4X1
=0.4
=0.25x1.6X(0.8x1.25)
=0.25x4x0.4x1
=1x0.4X1
=0.4
第2个回答 2020-09-07
1.6可以看成4x0.4
原式= 0.25x0.8x125x(4x0.4)
= 0.25x4x(0.8x125)x0.4
= 1x100x0.4
= 40
原式= 0.25x0.8x125x(4x0.4)
= 0.25x4x(0.8x125)x0.4
= 1x100x0.4
= 40
第3个回答 2020-09-08
1.6=4×0.4
解:0.25×0.8×1.25×1.6
=(0.25×4)×(0.8×1.25)×0.4
=1×1×0.4
=0.4
解:0.25×0.8×1.25×1.6
=(0.25×4)×(0.8×1.25)×0.4
=1×1×0.4
=0.4
第4个回答 2021-10-19
0.25✘0.8✘1.25✘1.6
=0.25✘0.4✘2✘1.25✘0.4✘4
=0.25✘4✘1.25✘2✘0.4✘0.4
=1✘2.5✘0.4✘0.4
=1✘1✘0.4
=0.4
=0.25✘0.4✘2✘1.25✘0.4✘4
=0.25✘4✘1.25✘2✘0.4✘0.4
=1✘2.5✘0.4✘0.4
=1✘1✘0.4
=0.4