5.2-7.2*0.45的简便算怎么算

5.2-7.2*0.45的简便算怎么算
2024-12-19 05:10:57
推荐回答(1个)
回答1:

5.2-7.2x0.45
=5.2-7.2x0.5x0.9
=5.2-3.6x0.9
=5.2-3.24
=1.96