Math Drill: Mental Math

Mental math practice that fits into two minutes. Open the app, tap Start, and answer addition, subtraction, multiplication and division questions while the level adapts to how fast and how accurately you answer.

Drill, don't browse
Twenty questions, a number keypad built for speed, and instant feedback on every answer. Get a few right in a row and the combo counter starts climbing; answer quickly and correctly and the level rises on its own.

Three drills to choose from
Basic keeps it to addition and subtraction with small numbers and no negative results. General mixes all four arithmetic operations with a fully adaptive level. Test gives you 90 seconds to solve as many mixed questions as you can.

See how every session went
The result screen shows your score, the average time per answer, your fastest answer, the level you reached and how you did in each operation. Every mistake can be reviewed afterwards, with the answer you typed next to the correct one.

Progress, streaks and your weakest operation
Build a daily streak and watch it on the progress screen, together with this week's sessions, accuracy and speed per operation, and your session history. Once there is enough data, Home points out the operation that needs work and starts a focused math drill on it in one tap.

A daily reminder, if you want one
Pick a time and the app reminds you to keep the streak alive. If you turn notifications off, everything else keeps working.

Works offline, no account
Every question is generated on the phone, so your mental math practice works offline, even in airplane mode. There is no sign-in, nothing to buy, and your progress never leaves the device.

Who it is for
Anyone who wants sharper mental math: students brushing up on arithmetic before an exam, adults keeping their head for numbers in shape, and anyone preparing for a timed numerical test. Available in English and Indonesian, with a light and a dark theme.

Good to know
Math Drill is free and supported by ads served by Google AdMob, which collects an advertising ID as set out in the privacy policy. Watching an optional short video turns ads off for 5 minutes.

Questions or ideas: admin@gookkis.com