Mental Math DrillFree, no sign-up
Solve 10 problems as fast as you can. The problems change at midnight Japan time (UTC+9) and are the same 10 for everyone on the same day and level.
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🎉 All 10 solved!
Random practice runs are not added to the leaderboard.
FAQ
How does the drill work?
Press Start to see the first problem. Type your answer on the keypad and press Enter (or Answer). A correct answer moves you to the next problem; a wrong one means trying the same problem again. You're done after 10 problems.
What happens if I get one wrong?
You can't move on until you get it right, so your time goes up. That's the only penalty.
Do the problems change every day?
Yes. All three levels change at midnight Japan time. On the same day and level, everyone gets the same 10 problems. Random practice gives different problems each time and isn't recorded.
How is the leaderboard ranked?
By the time to finish all 10 problems, fastest first. You only need a nickname, and you can submit up to 30 times a day per level. The server checks your list of answers.