Question

147×2.5+0.53×2.5+5.4用简便方法？

Answer 1

解：简便计算方法如下
147×2.5+0.53×2.5+5.4
=147×（2+0.5）+0.53×（2+0.5）+5.4
=147×2+147×0.5+0.53×2+0.53×0.5+5.4
=294+73.5+1.06+0.265+5.4
=367.5+1.06+0.265+5.4
=368.56+5.665
=374.225

Answer 2

147×2.5+0.53×2.5+5.4
＝147×2.5+0.53×2.4+2×2.5+0.4
＝（147+0.53+2）×2.5+0.4
＝149.53×2.5+0.4
＝373.825+0.4
＝374.225

Answer 3

147×2.5+0.53×2.5+5.4用简便方法？
=（147+0.53）×2.5+5.4
=147.53×2.5+5.4
=368.825+5.4
=374.225
望采纳 谢谢~~

Answer 4

原式
=（147+0.53）*2.5+5.4
=36.8825+5.4
=42.2825

Answer 5

解：原式=2.5X147.53十5.4=374.225。