1.2x2.5+0.8x2.5简便计算

1.2x2.5+0.8x2.5简便计算
2024-12-31 10:15:19
推荐回答(3个)
回答1:


回答2:

=2.5*(1.2+0.8)
=2.5*2
=5

回答3:

1.2x2.5+0.8x2.5
=(1.2+0.8)x2.5
=2x2.5
=5