Question

0.004x95ⅹ50怎么简便计算？

Answer 1

此算式可用乘法结合律，95×（0.004×50）=95×0.2=19

Answer 2

0.004*95*50
=0.004*50*95
=0.2*95
=19

Answer 3

原式＝0.004×50×95
＝2×95
＝190