Sum Square

Place the numbers in the colored boxes such that the sum of the numbers equals the required number for each box. The levels start off easy, but later levels can be quite challenging. Test your addition and problem-solving skills to complete all 60 levels, without relying too heavily on the solutions button in the main menu.

Use either touch or the mouse to drag and drop the letters. The in-game instructions for the starting levels will guide you on how to play. Be sure to click the number boxes at the top if you need to highlight a box. On later levels, when more boxes intersect, it can be helpful to make the box boundaries more visible.