6.3*10.1简便计算

问题描述:

6.3*10.1简便计算

6.3×10.1=6.3×(10+0.1)=6.3×10+6.3×0.1=63+0.63=63.637.3×9.9=7.3×(10-0.1)=7.3×10-7.3×0.1=73-0.73=72.27希望能帮到你!