1.25×0.2×2.5怎么巧算,快
问题描述:
1.25×0.2×2.5怎么巧算,快
答
就是先算0.2×2.5=0.5
然后算1.25×0.5=0.625
1.25×0.2×2.5怎么巧算,快
就是先算0.2×2.5=0.5
然后算1.25×0.5=0.625