5.5乘以8.2+1.8乘以5.5脱式计算

5.5乘以8.2+1.8乘以5.5脱式计算
2025-05-10 15:45:08
推荐回答(1个)
回答1:

5.5×8.2+1.8×5.5
=5.5×(8.2+1.8)
=5.5×10
=55