Addition and Substraction Game

Like mental arithmetic? Sudoku-type games? Then Incredible Sums Workout is for you! What is the purpose of the game? We must ensure that the sum of numbers are equal to the results of the end of the line! 3*3 and 4*4 grids are availables with addition and subtraction. How do you play? By dragging numbers availables in the boxes to complete! Game Modes:   - Levels     Over 1000 levels to unlock to be able to tell your friends "Hey! I reached the level 248".     You are stuck? Do not worry, you can use 3 hints per level!   - Relax     An infinite number of levels completely random, without hint limitation! Compatible with window mode on some devices (Samsung Galaxy S 3 4 Note, Note II).