用乘法分配律计算下面各题47×148-57×48等于多少?

2025-04-27 07:16:56
推荐回答(1个)
回答1:

47×148-57×48
=47x100+47x48-57x48
=4700-48x(57-47)
=4700-48x10
=4700-480
=4220