The app offers practice with subtraction problems ranging from one to six digits. Users can choose random problems or enter their own, with tutorial animations and hint options available.
Play a number-based game with 4 difficulty modes and 18 unlockable backgrounds. View statistics, reset scores, and access rules. Use double tap to move cards and undo moves. Retina graphics match Windows game numbers.
Test finger speed by tapping a as many times as possible within 10 seconds. Track high scores and restart the challenge. Share results on social media.
Simulate bus stop interactions by pressing the stop repeatedly. Trigger the bus to arrive at the next stop. Tap the bus to activate the klaxon sound. Mimic Japanese bus behavior with touch-based actions.
