2.7×8点9+2点1×2点7-2点7简便计算

2.7×8点9+2点1×2点7-2点7简便计算
2024-11-22 11:50:08
推荐回答(2个)
回答1:

2.7×8.9+2.1×2.7-2.7
=2.7×(8.9+2.1-1)
=2.7×10
=27

回答2:

2.7×8点9+2点1×2点7-2点7

2.7×8.9+2.1×2.7-2.7
=2.7×(8.9+2.1-1)
=2.7×10
=27