Chart standing · US
What changed · US
Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.
Price & rating history · US
Reconstructed from the listing changes AppTracker has observed in this storefront, so each line starts at the first change on record.
Price · USD
About
How many addition, subtraction, and multiplication problems can you solve in 60 seconds? A mental math speed game. HOW TO PLAY 1. Tap the correct answer out of four choices 2. The more you solve, the bigger the numbers get 3. A wrong answer costs you 2 seconds! 4. Your score is the number of correct answers in 60 seconds FEATURES - No tutorial needed. Anyone can play instantly - Difficulty scales with your progress - great brain training for adults - Best score is saved automatically - make daily records a habit - Share your results and compete with friends - Works offline. Perfect for commutes and waiting time - Available in English and Japanese Mental math improves with daily practice. Can you clear 20 problems? Give it a try!
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