× ÷3 ×2 ×4 ÷
1÷ = + = ÷ = ÷ =
× = +0.8= ÷1= × =
+ = - = 24÷ = ÷ =
① ÷ ×
② ÷( + )
③ × + ÷5
④1- ÷
⑤ - ÷ -
⑥( + )÷