54乘以5的巧算

2025-02-14 04:09:47
推荐回答(3个)
回答1:

54乘以5
=(50+4)乘以5
=50乘以5+4乘以5
=250+20
=270

回答2:


如图

回答3:

54×5
=50×5+4×5
=250+20
=270