37.9 3.6×2.8=多少简便计算

2024-12-02 15:59:18
推荐回答(1个)
回答1:

解: 37.9+3.6×2.8
=37.9+3.6×(3-0.2)
=37.9+10.8-0.72
=37.9+10.08
=37.98