0.63÷(5x0.7) 20.1x3.5一0.35 用简算法简算

分类: 作业答案 • 2021-12-19 15:53:02

问题描述：

答

=0.63÷3.5x 20.1x3.5一0.35
=0.18x 20.1x3.5一0.35
=3.618x3.5一0.35
=12.663-0.35
=12.313