5×5×5-7×5×3脱式计算

2024-12-01 11:24:43
推荐回答(5个)
回答1:

5×5×5-7×5×3脱式计算
5×5×5-7×5×3
=5*(25-21)
=5*4
=20

回答2:

5×5×5-7×5×3脱式计算
=5x(5x5-7x3) 乘法分配律
=5x(25-21)
=5x4
=20

回答3:

5×5×5-7×5×3

=5×(5×5-7×3)
=5×(25-21)
=5×4
=20

回答4:

5×5×5-7×5×3=125-105=20

回答5:

5×(25-21)=5×4=20