MathBlast: free mental-math practice that builds real fluency
Start here: Addition warm-up · Ten quick sums to warm up — no timer. · About 2 minutes
MathBlast is fast, friendly arithmetic practice that grows with your child. It covers the four operations, number sense, and fractions, decimals, and percents, with both calm untimed practice and 45-second timed blasts for kids who love a challenge. It's free and has no ads. Diffy measures product use to improve the service.
What kids learn
- Addition, subtraction, multiplication, and division facts
- Comparing numbers and reasoning on a number line, including negatives
- Reading, comparing, and finding equivalent fractions
- Decimal place value, comparison, and addition and subtraction
- Finding a percent of a number and converting percents, fractions, and decimals
- Order of operations and times-table mastery up to 12
How it works
Every drill is freshly generated: a prompt card — an equation, a pie or bar model, or a number line — with a few answer buttons to tap. Untimed practice runs a fixed set of questions, while Blast rounds are timed sprints where a streak fills a fuel meter. Each drill has three or four tiers, from Easy up to Expert, and awards up to 3 stars.
Kids can play without signing in; guest stars stay until you reload or close the page. A grown-up signs in once and adds a player for each kid, so MathBlast's stars and progress save to your account and follow you to any device.
Also try
- CoinQuestAges 6–11
Name coins, make change, budget and save — eight play-money games.
Play CoinQuest → - MindMazeAges 7–14
Sudoku, nonograms and deduction puzzles that level up.
Play MindMaze →
Ready to play MathBlast?
It's free and has no ads. Diffy measures product use to improve the service. Ages 6–13.