At the beginning of the battle you need to even the odds to become a fair fight, and we suggest you do the same with a set of numbers on the left and right side. As long as there is between the numbers is not equality, but if you insert between the numbers of multiplication signs, division, addition and subtraction, you can get the same amount, and the problem will be solved. Proceed with the mouse, drag marks. If you want a hint, click the button in the upper right corner.