2.4L=mL 360mL=dm3
× 2019÷ 2019
12.57÷0.712.57×70%
- = ÷12= 15× = 36÷ =
× = ÷ = × = ÷ =
( + )×24= 5÷ + ÷5=
品种
绣球
月季
杜鹃
面积/平方米
40
20
50