A quick mental math workout
Mental arithmetic is a skill that fades without use and comes back quickly with practice. This one-minute sprint keeps it simple: a sum appears, you type the answer, and the next one arrives the moment you are right.
Choose Easy for addition and subtraction, Medium to add times tables, or Hard for division and bigger numbers. Use the big number pad on a phone or your keyboard on a computer, and try to beat your best score every day.
How to play Mental Math
- Pick a level, then tap Start. A 60-second timer begins.
- Type the answer with the number pad or your keyboard. It counts as soon as it is right, with no need to press Enter.
- A wrong answer shakes the card and clears it so you can try again. Skip moves to a new sum but breaks your streak.
- Easy uses addition and subtraction, Medium adds times tables, and Hard adds division and bigger numbers.
- Your score is the number of correct answers. Your best score for each level is saved.
Mental Math tips
Add from the left
For 47 + 36, add the tens first (70), then the ones (13), then combine (83). It is faster in your head than carrying.
Use round numbers
For 58 + 27, think 60 + 27 − 2. Rounding to the nearest ten and fixing the difference is often quicker.
Know your times tables cold
On Medium and Hard, most time is lost on multiplication. Practicing the 6, 7, 8 and 9 tables pays off fastest.
Turn division into multiplication
For 56 ÷ 7, ask "7 times what makes 56?" Every division here comes out even.
Frequently asked questions
Is this good for adults?
Yes. The Medium and Hard levels are a quick daily workout for adults, and Easy is great for kids learning to add and subtract.
Do I need to press Enter?
No. As soon as the number you typed is correct, the next sum appears. On a keyboard, Enter with an empty answer skips.
What is a good score?
It depends on the level and on practice. Compare with your own best, which is saved for each level, and try to beat it a little every day.
