0.48x0.67和0.99÷0.75怎么简便

问题描述:

0.48x0.67和0.99÷0.75怎么简便

0.48x0.67=(0.5-0.02)×0.67=0.335-0.0134=0.3216
0.99÷0.75=0.99×4/3=0.33×4=1.32