1+2=3 is a simple, fun and educational math game in which all equations are designed around the numbers 1, 2, 3 and the operators plus and minus. Even the answer will always be 1 or 2 or 3. Sounds easy? It is! But wait! There is one difference to the tasks, the kids have to solve in school: You have only 3 seconds time to calculate or to decide what could be the correct answer! Increase your score with each equation solved in succession and unlock achievements while you play. Be aware, the tasks will be easy in the beginning but soon the game will become a challenging and absorbing brainteaser!