两道简便运算题12.5x0.25x327/9÷11/5+5/11x2/9

分类: 作业答案 • 2022-01-02 16:18:56

问题描述：

两道简便运算题
12.5x0.25x32
7/9÷11/5+5/11x2/9

答

12.5x0.25x32
=12.5x8x0.25x4
=100x1
=100
7/9÷11/5+5/11x2/9
=7/9x5/11+5/11x2/9
=5/11x(7/9+2/9)
=5/11x1
=5/11