2.7×2.3 +8.3×2.7-0.2×8.1简便计算方法?

2024-11-26 00:23:58
推荐回答(2个)
回答1:

2.7×2.3+8.3×2.7-0.2×8.1
=2.7×(2.3+8.3)-0.2×3×2.7
=2.7×10.6-0.6×2.7
=2.7×(10.6-0.6)
=2.7×10
=27

回答2:

原式=2.7×(2.3+8.3)-0.2×3×2.7
=2.7×(10.6-0.6)
=2.7×10
=27