3.9×7.6+3.9×3.4-3.9怎么简便

3.9×7.6+3.9×3.4-3.9怎么简便
2025-09-10 09:15:31
推荐回答(4个)
回答1:

3.9×7.6+3.9×3.4-3.9
=3.9×(7.6+3.4-1)
=3.9×10
=39

回答2:


如图

回答3:

3.9*(7.6+3.4-1)
=3.9*10
=39

回答4:


39