Question

13.6+4.5x0.8简便计算怎么做？

Answer 1

简便计算如下：
13.6+4.5×0.8=13.6+4.5×（1-0.2）
=13.6+4.5×1-4.5×0.2
=13.6+4.5-0.9
=18.1-1+0.1
=17.2

Answer 2

原式=13.6+4.5x0.8
=13.6+（2.5+2）x0.8
=13.6+2.5x0.8+2x0.8
=13.6+2+2x0.8
=15.6+1.6
=15.6+（1.4+0.2）
=15.6+1.4+0.2
=17+0.2
=17.2

Answer 3

具体简便计算解答过程如下所示
13.6+4.5×4/5
=13.6+4.5/5×4
=13.6+0.9×4
=13.6+3.6
=17.2

Answer 4

13.6+4.5x0.8
＝13.6十9／2×4／5
＝13.6+3.6
＝17.2
直接算也很便当的结果等于17.2。

Answer 5

13.6+4.5×0.8
＝13.6+（5-0.5）×0.8
＝13.6+4-0.4
＝17.6-0.4=17.2