Question

4ⅹ7.2ⅹ0.25用简便方法

Answer 1

简便计算方法如下：

4×7.2×0.25

=4×0.25×7.2

=1×7.2

=7.2

Answer 2

原式＝（4x0.25）x7.2
＝1x7.2
＝7.2

Answer 3

4*7.2*0.25=4*0.25*7
4*0.25=1
即为4*7.2*0.25=1*7.2=7.2

Answer 4

原式=1×7.2
=7.2