6.6×3.3+66.5×67用简便运算怎么算?

2025-04-03 11:17:18
推荐回答(1个)
回答1:

6.6x3.3+66.5x67=66x0.33+(66+0.5)×67=66×(0.33+67)+0.5x67=4443.78+33.5=4477.28