Sum Stacks is a something for the arithmetic artists. We use the "mouse" or the "fingers" to match the numbers and get the correct sums we in the top part. We have to pay attention the the different operators. In each level everything will get a little more complicated and sometimes we just gotta try around to solve the puzzles.
tags: math, learn, level, plus, minus, divide, multiply, divide, add More games of the categories Brain Games, Math Games,