☆ 47.3×8.4+1.6×49.8简便算法

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/05 19:39:03
☆47.3×8.4+1.6×49.8简便算法☆47.3×8.4+1.6×49.8简便算法☆47.3×8.4+1.6×49.8简便算法47.3×8.4+1.6×49.8=47.3×8.4+1.6×(47

☆ 47.3×8.4+1.6×49.8简便算法
☆ 47.3×8.4+1.6×49.8
简便算法

☆ 47.3×8.4+1.6×49.8简便算法
47.3×8.4+1.6×49.8
=47.3×8.4+1.6×(47.3+2.5)
=47.3×8.4+1.6×47.3+1.6×2.5
=47.3×(8.4+1.6)+2.5×4×0.4
=47.3×10+10×0.4
=(47.3+0.4)×10
=47.7×10
=477