Question

在4个3分之一中间分别填上 + - × ÷或( )使算式的结果分别等于0,1,2,3,4,5,6,7,8,9 注意 是3

Answer 1

1/3+1/3-1/3-1/3=0

(1/3+1/3)/(1/3+1/3)=1

(1/3÷1/3)+(1/3÷1/3)=2

(1/3+1/3+1/3)÷1/3=3

(1/3+1/3)÷1/3÷1/3=6

1/3÷1/3÷1/3÷1/3=9