1.25 1.25x9简便计算要四步

1.25 1.25x9简便计算要四步
2025-03-01 09:28:00
推荐回答(1个)
回答1:

1.25 +1.25x9简便计算要四步
=1.25×1+1.25×9
=1.25×(1+9)
=1.25×10
=12.5