6÷6+6÷6=2

6×6÷(6+6)=3

6-(6+6)÷6=4

(6×6-6)÷6=5

(6-6)×6+6=6

(6×6+6)÷6=7

6+(6+6)÷6=8

Extended data:

Three 2-column formulas are equal to 6, such as: 2+2+2 = 6; 2×2+2=6。

Three four-column formulas are equal to 6, such as: 4+4-√4=6.

Three five-column formulas are equal to 6, for example, 5+(5÷5)=6.

Three six-column formulas are equal to 6, such as 6+6-6=6.

Three 8-column formulas are equal to 6, such as (? √8)+(? √8)+(? √8)=6。

Three 9-column formulas are equal to 6, such as 9 \u (? √9)+(? √9)=6。