Question

0.88×1.2+0.89×9.6的简便运算？

Answer 1

此题考查的是乘法分配律的灵活运用

0.88×1.2+0.89×9.6

＝0.11×8×1.2+0.89×9.6

＝0.11×9.6+0.89×9.6

＝（0.11+0.89）×9.6

＝1×9.6

＝9.6

Answer 2

0.88×1.2+0.89×9.6的简便运算
那就应该是把前面那一项变成0.89×1.2，再减去0.01×1.2。这样就出现了0.89的公因数。可以把0.89提到前面去，括号里面就是1.2+9.6。然后再减去0.01×1.2。

Answer 3

0.88x1.2+0.89x9.6
＝0.11x8x1.2+0.89x9.6
＝0.11x9.6＋0.89x9.6
＝（0.11+0.89）x9.6
＝1x9.6
＝9.6
0.88x1.2+0.89x9.6
＝0.88x1.2+（0.88+0.01）x9.6
＝0.88x1.2+0.88x9.6+0.096
＝0.88x1.2+0.88x8.8+0.88x0.8+0.096
＝0.88x（1.2+8.8）＋0.704+0.096
＝8.8+0.704+0.096
＝9.6

Answer 4

0.88x1.2+（0.88+0.01）x9.6=0.88x1.2+0.88x9.6+0.01x9.6=0.88x（1.2+9.6）+0.01x9.6=0.88x11.52+0.096=10.1376+0.096=10.2336

Answer 5

0.88x1.2+0.89ⅹ9.6
=0.11x8x1.2+0.89x9.6
=0.11x9.6+0.89x9.6
=(0.11+0.89)x9.6
=1x9.6
=9.6。