7.2*3.58+4.2*0.72的简便方法

7.2*3.58+4.2*0.72的简便方法
2024-11-22 16:09:03
推荐回答(2个)
回答1:

=7.2✘3.58+0.42✘7.2
=(3.58+0.42)✘7.2
=4✘7.2
=28.8

回答2: