0.75+0.75乘16.3+0.75乘2.7的简便算法0.75+0.75乘16.3+0.75乘2.7的简便算法快

分类: 作业答案 • 2022-06-07 16:56:44

问题描述：

0.75+0.75乘16.3+0.75乘2.7的简便算法
0.75+0.75乘16.3+0.75乘2.7的简便算法快

答

0.75乘（1+16.3+2.7）=15

答

0.75 + 0.75×16.3 + 0.75×2.7
= 0.75×(1 + 16.3 + 2.7)
= 0.75×20
= 15

答

0.75+0.75乘16.3+0.75乘2.7
＝0.75×1+0.75×16.3+0.75×2.7
＝0.75×（1＋16.3＋2.7）
＝0.75×20
＝15

0.75+0.75乘16.3+0.75乘2.7的简便算法0.75+0.75乘16.3+0.75乘2.7的简便算法 快