2 x 6 ÷ 2 + 1 You can try grouping this three different ways and solving.
(2 x 6) ÷ 2 + 1 Multiply
12 ÷ 2 + 1 Divide
6 + 1 Add
7
2 x (6 ÷ 2) + 1 Divide
2 x 3 + 1 Mutliply
6 + 1 Add
7
2 x 6 ÷ (2 + 1) Add
2 x 6 ÷ 3 Multiply
12 ÷ 3 Divide
4
The correct way to group this equation to equal 4 is 2 x 6 ÷ (2 + 1) .