El aparcamiento matemático

In this math parking game, drive the car towards asked parking slot. You need to find the slot number by solving the math problem displayed at bottom right corner. Avoid any collision with other cars or walls. You will have 5 chances to complete a level. Each time you collide with wall or any other car, you lose 1 chance. Park fast and safely to get more score. There are 30 challenging levels in this game. Complete all to be a winner.