Your answers stay on this device. No ads, no accounts, nothing is sent anywhere.
For parents and teachers
Math Estimator practises number sense: judging whether an answer is about right. Points go to guesses that are close, not only exact ones, and after each answer the game says how far off the guess was and shows one way to work it out.
Baby Mode (roughly ages 3 to 5): counting, adding and comparing with pictures. No reading needed.
Numbers, Time Detective, Shopping, Friends Math, About Me (roughly 7 to 12): multiplication, fractions, percentages, money, time and counting pairs.
Real World, Big Numbers, Puzzlers, Fallacies, College (older kids and adults): facts and prices, millions vs billions, classic puzzles, and how scams, lotteries and misleading statistics work.
No ads, accounts or tracking. Scores and About Me answers are saved only in this browser, and the game works offline once loaded. Real-world facts and prices were last checked in September 2026; each answer links to its source.