7⼀9×5.8+7⼀9×3点。2+7⼀9,这道题怎样简便就怎样算?

2025-04-06 08:41:30
推荐回答(1个)
回答1:

7/9×5.8+7/9×3.2+7/9
=7/9×(5.8+3.2+1)
=7/9×10
=70/9