3.75×0.25×1.6用简便方法怎么算还有啊3.65×4.7-36.5×0.37用简便方法怎么算6.4×38+3.2×24用简_数学解答

3.75×0.25×1.6用简便方法怎么算
还有啊3.65×4.7-36.5×0.37用简便方法怎么算
6.4×38+3.2×24用简便方法怎么算

人气：338 ℃　时间：2019-12-04 06:42:04

解答

3.75×0.25×1.6
=(3.75×8）×（0.25×2）
=30×0.5
=15
3.65×4.7-36.5×0.37
=3.65×4.7-3.65×3.7
=3.65×（4.7-3.7）
=3.65×1
=3.65
6.4×38+3.2×24
=3.2×76+3.2×24
=3.2×（76+24）
=3.2×100
=320