Sumwhat: Quick Math

Sumwhat is a fast, fun mental-math game where close is good, and closer wins. Each round shows you a math problem and gives you ten seconds. Work it out in your head, type your answer, and lock it in. Exact answers score 20 points. Near misses still count: the closer you are, the more you earn. Feeling confident? Lock in early. The sooner you lock, the bigger your multiplier, up to ×2. But a fast wrong answer is still wrong, so trust your gut wisely. • 10 rounds, 10 seconds each • Problems get harder as you go • Up to 40 points a round, 400 a game • Beat your personal best, saved on your device • Satisfying animations and haptics • Works completely offline • No ads, no accounts, no tracking Warm up your brain, sharpen your mental math, and see how close you can get.