78x37-37x68如何简便?

2025-04-16 07:13:57
推荐回答(2个)
回答(1):

78x37-37x68
=78x37-68x37
=(78-68)x37
=10x37
=370

回答(2):

78x37-37x68
=78×37-68×37
=(78-68)×37
=10×37
=370