Squares of Doom: Addition

Solve each of the 10 levels by filling in the orange squares to sum up to the red squares. Author Comments: Solve each of the 10 levels by filling in the orange squares to sum up to the red squares, both rows and columns. Careful though: boxes can have a pair that must contain the same number. Give the game your best shot!

Categories and tags of the game : Educational, Mathematics, Puzzle, Single Player