Question

4.5*1.3+2.9简便计算方法？

Answer 1

4.5×1.3+2.9
=1.5×3.9+2.9
=1.5×4+（2.9-1.5×0.1）
=6+（2.9-0.15）
=6+2.75
=8.75
那么我们可以通过上面的简便计算过程运算进行详细计算，得到答案是8.75。

Answer 2

4.5*1.3+2.9
=4.5*（1+0.3）+2.9
=4.5+4.5*0.3+2.9
=4.5+1.35+2.9
=8.75

Answer 3

4.5×1.3+2.9=5.85+2.9=8.75

Answer 4

4.5×1.3＋2.9
＝4.5×1＋4.5×0.3＋2.9
＝4.5＋1.35＋2.9
＝5.85＋3一0.1
＝8.85一0.1
＝8.75

Answer 5

4.5*1.3+2.9
=(4.5+4.5×0.3）+2.9
=4.5+1.35+2.9
=8.75

追答

4.5×1+4.5×0.3+2.9
=5.85+2.9
=8.75