Mental Math Practice
Your numbers. Your pace. A quicker mind.
Make this round yours.
Choose your settings, then start practicing.
Practice that fits your day.
Start with a short mixed round, focus on addition or multiplication, or choose your own number ranges. Type the correct answer and the next question appears automatically. Review your round, then learn a shortcut for the problems that took longer.
Build fluency with times tables practice. Use the 90-second speed test for a balanced test, or explore consulting mental math for scenario practice.
Your progress, in context.
Practice rounds measure how quickly you reach the correct answer, so you can keep trying without penalties. Compare rounds with the same settings to see your speed improve. The 90-second speed test separately measures first-answer accuracy.
Guest history stays on this device. A free account saves your recent sessions across devices. Only the Daily Challenge uses verified scoring for its public board.
Want to get insanely fast?
Join 2,000+ learners. Learn the 14 mental math strategies, practice them with interactive drills, and build speed that sticks.
All the practice on this page stays free.740 − 37 = 703
“This might be the best mental math tool I’ve used. Thank you!”A learner on Reddit
Frequently Asked Questions
Choose your operations, number ranges and either a question goal or a timer. Then select "Start practicing". Type the correct answer to move on automatically, with no Enter key needed. At the end, review your time and a useful shortcut. All practice is free, with no account required.
Yes - mobile practice was a top request. You can practice wherever you want (waiting in line, on the bus, etc.).
Repeated practice makes the arithmetic patterns on this page more familiar and gives you immediate answer feedback and a time for each round. Broader problem-solving still depends on the context and the kind of problems you practice.
Recent round summaries are stored on this device, and a free account can keep your newest 50 summaries across devices. The Daily Challenge gives everyone the same ten questions and one official attempt per UTC day. You can choose a nickname and opt into its public board; ordinary practice stays private.
Maybe. Right now we're focused on the fundamentals. If you have suggestions, let us know!