Question

0.92×9.9+0.792的简便计算是什么？

Answer 1

解：简便计算方法如下
0.92×9.9+0.792
=0.92×（10-0.1）+0.792
=0.92×10-0.92×0.1+0.792
=9.2-0.092+0.792
=0.792-0.092+9.2
=0.7+9.2
=9.9

Answer 2

这道题的简便主要就是前面的9.9把它变成1-0.1呀。这样的话再分别和前面的0.92相乘就是简便了呀。他就变成了0.92-0.092。然后又用后面的0.792先减去这个0.092就变成了0.7+0.92。

Answer 3

0.92×9.9+0.792
＝0.92×（10-0.1）+0.792
＝0.92×10-0.92×0.1+0.792
＝9.2-0.092+0.792
＝9.2+（0.792-0.092）
＝9.2+0.7
＝9.9

Answer 4

0.92×9.9＋0.792
＝0.92×9.9＋0.08×9.9
＝9.9×(0.92＋0.08)
＝9.9×1
＝9.9

Answer 5

根据题目条件，可知
0.92x9.9+0.792
=0.92x9.9+0.08x9.9
=(0.92+0.08)x9.9
=1x9.9
=9.9