27X49=用简便算式?

27X49=用简便算式?
2024-12-14 19:39:56
推荐回答(2个)
回答1:

27x49
=(50-1)x27
=1350-27
=1323

回答2:

=27×(50-1)=27×50-27=1350-27=1323