Drivers, start your engines and get ready for some turbo-charged adding and subtracting action. Put your foot flat to the floor and race around exciting 3D worlds boosting your mental addition and subtraction skills.
Fast-paced and furious, answers pop-up right before your eyes so quick reflexes and careful car control is a must. Make sure you select the correct answer or be prepared to pay the penalty. Answer as many problems as you can to collect keys to unlock new and exciting tracks to race on. Take a casual drive through tranquil mountains, make dust fly in the outback, power through the city streets or turn up the heat in an underground lava filled cave.
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