Minus 1 Add 1 — ASO

By Mudarmeen Munlin on AppTrack Ninja.

subtract number by 1, Add by 1

Minus by 1 and Add by 1 Compete with other players. Ranking is given in the Game Center. Keep our brain working and productive. Easy math game for kids and family. Given random four digit integer, e.g. 6591. Subtract one from each digit, output four new digits, i.e. 5480. Think and type it as fast as you can in 30 seconds. Get as many as correct answers. Correct answer, earn +1 point. Incorrect answer, deduct -1 point. Brain, eyes and finger productivity. Measure your performance with other players. Leaderboard is given by the Game Center. First time to play, login to Game Center first. Best …

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