420*53+58*530怎样简便计算?

2025-03-10 07:42:25
推荐回答(2个)
回答1:

=42*10*53+58*530
=42*530+58*530
=(42+58)*530
=100*530
=53000

回答2:

420ⅹ53+58x530
=(420+580)x53
=1000ⅹ53
=53000