The rules of Quick Maths
Quick Maths is a mental math game against the clock: you have 60 seconds to solve as many operations as you can. Each correct answer is worth one point, and your final score is the number of right answers.
Three kinds of operations come up at random: additions of two numbers up to 99, subtractions whose result is never negative, and multiplications from the 2 to 12 times tables. There's no division.
As soon as you've typed as many digits as the answer has, it's checked automatically and the next operation appears. A mistake doesn't cost you a point, but that sum is lost: speed matters, and so does accuracy.
Mental math tips
For additions, break numbers down: 47 + 38 is 47 + 30 = 77, then + 8 = 85. Round when it helps: 59 + 26 is 60 + 26 − 1 = 85.
For subtractions, count up: from 47 to 50 is 3, from 50 to 83 is 33, so 83 − 47 = 36. It's often faster than carrying digits in your head.
For multiplications, knowing your times tables up to 12 by heart makes all the difference. A few shortcuts: 9 × 7 is 70 − 7 = 63; 11 × 7 is 70 + 7 = 77; 12 × 8 is 80 + 16 = 96.
Finally, don't get stuck on a hard one: a wrong answer costs nothing more than a skipped sum, so keep the pace. And watch the timer: it changes color in the last ten seconds, the perfect moment to speed up.
Why practice mental math
One minute a day is enough to improve: mental math trains focus, working memory and comfort with numbers, which helps students and adults alike. The short format makes it easy to replay and beat your record, one or two extra points at a time.
Quick Maths is free and runs in your browser, with the on-screen keypad or your computer keyboard. With an account, your best score goes onto the leaderboard. And to challenge your friends another way, NoBrainGame also has multiplayer party games.
Frequently asked questions
How long does a game of Quick Maths last?
60 seconds. Your score is the number of operations you solve correctly in that time.
Which operations do you have to solve?
Additions up to 99 + 99, subtractions with a result of zero or more, and multiplications from the 2 to 12 times tables. No division.
Do you lose points for a wrong answer?
No, it just scores nothing and the next operation appears right away. You only lose the time you spent on it.
Can you play with the keyboard?
Yes: type the digits on your keyboard, erase with Backspace and submit with Enter. An on-screen keypad is also there for playing by touch.