25x14×81用简便运算怎么做?

2025-03-24 08:53:55
推荐回答(3个)
回答1:

25x14×81用简便运算怎么做?
=(25×2)×(7×81)
=50×567
=28350

回答2:

25x14×81
=25x14×80+25x14x1
=14x2000+350

=28000+350
=28350

回答3:

25x14×81
=(25X2)X(7X81)
=50X567
=28350