Question

用简便算法算 3.75×4.8＋62.5×0.48 快我急用 好了我在给20分

用简便算法算 3.75×4.8＋62.5×0.48 快我急用 好了我在给20分

Answer 1

原式=3.75×4.8+6.25×4.8=（3.75+6.25）×4.8=10×4.8=48

Answer 2

= 37. 5×0.48+62.5×0.48=(37.5+62.5)×0.48=100×0.48=48

Answer 3

原式=3.75×4.8+6.25×4.8
=(3.75+6.25)×4.8
=10×4.8
=48

Answer 4

3.75×4.8＋62.5×0.48
=3.75×4.8＋6.25×4.8
=(3.75＋6.25)×4.8
= 10×4.8
= 48

Answer 5

你把3.75的写成37.5X0.1与62.5合并为100再计算简单多了.