137×68-68×37。用简便方法计算?

2025-06-20 09:07:55
推荐回答(2个)
回答1:

简便计算
137×68-68×37
=(137-37)x68
=100x68
=6800

回答2:

解:原式=68(137一37)
=68×100
=6800