Math Challenge — Mental Math Game

Math Challenge is a fast, fun mental math game for kids ages 8–14 and adults. Swipe to answer multiple-choice problems, build streaks, and watch the difficulty adapt to you — like flashcards that fight back.

What you practice

35 topics with real difficulty curves: times tables and multiplication, addition, subtraction, division, fractions, decimals, percentages, negative numbers, square roots, rounding, number bonds and more mental arithmetic skills.

Magic Tricks — mental math shortcuts

36 illustrated lessons that teach the why behind mental math shortcuts: multiply by 11 in your head, square numbers ending in 5, doubling and halving, percentage flips and other tricks — each with its own practice mode.

The free Daily Challenge

Ten fresh problems every day, free forever. Keep your streak alive, earn achievements, and compare scores with friends in the league.

Simple pricing

Try everything free for 7 days, then a one-time $3.14 unlocks the game for life. No subscription, no ads, no third-party trackers. See pricing, privacy and terms.

Works in your browser as an installable app (PWA), on Android via Google Play, with iOS coming soon. Available in 12 languages.