简算10.64+7.65×2.4+11.76

分类: 作业答案 • 2021-12-03 17:44:11

问题描述：

答

10.64+7.65×2.4+11.76
=10.64+7.65×﹙2+0.4﹚+11.76
=10.64+﹙15.3+3.06﹚+11.76
=10.64+18.36+11.76
=29+11.76
=40.76