水果
苹果
荔枝
西瓜
数量/吨
- = + = +0.25 = + + =
1- = - = - = + =
13.6+6.44= 1- = 0.48×2.5= 3.15÷3= + =
2.54-0.4= 5.3+7= 9÷14= 0.32= 1.25×0.8÷1.25×0.8=