0.36×98＋3.6×0.2怎么简便计算

分类: 作业答案 • 2021-12-20 05:32:35

问题描述：

答

3.6×9.8+3.6×2
＝3.6×(9.8+2)
=3.6×10
=36

答

0.36×98＋3.6×0.2
= 3.6 × 9.8 ＋ 3.6 × 0.2
= 3.6 × 10
= 36

答

3.6X0.2=0.36X2 很容易看出来原式可以写成0.36X（98+2）=0.36X100=36