0.9×5.6+9×0.44简便方法?

2025-06-20 14:13:26
推荐回答(1个)
回答1:

简便方法计算都是重新组合,尽量凑成整数,0.9*5.6+9*0.44=9*0.56+9*0.44=9*(0.56+0.44)=9