4.05×2.2+27.17⼀13的简便方法是什么?

2025-04-12 13:49:10
推荐回答(1个)
回答1:

4.05×2.2+27.17÷13
=4.05×2+4.05×0.2+26÷13+1.17÷13
=8.1+0.81+2+0.09
=8.91+2.09
=11