Question

0.25×3.7×0.4用乘法交换律计算该怎么脱式计算？

Answer 1

脱式计算是一个数学学科术语，即递等式计算，把计算过程完整写出来的运算，也就是脱离竖式的计算。
0.25×3.7×0.4
=0.25x0.4x3.7
=0.1x3.7
=0.37。

Answer 2

0.25×3.7×0.4
=0.25×0.4x3.7
=0.1×3.7
=0.37

Answer 3

原式=0.25×0.4×3.7=0.1×3.7=0.37