OFFICIAL RELEASEPlay the official version nowDaily challenges, rankings, and groups are ready. Move to anzan20.com.anzan20.com へ移動する
One-digit answer sprint

Speed Mode20Q

Solve only one-digit-answer problems with quick reflexes.

Train calculation speed and focus in about 30 seconds a day.

UPDATESpeed Mode and Double-Digit Mode are now available
Example
3 × 2
Best--.--

Input settings

Answer flow
Number key layout

Choose your math mode

Play the normal mode, sprint through one-digit answers in Speed Mode, or practice two-digit addition and subtraction.

Speed overview

Answers are one digit

Spend less time thinking and more time reacting.

Built for rhythm

Clear short problems in a row and keep your focus high.

Speed ranking

Compete on a separate leaderboard made for the fastest runs.

How to play

1

Start

2

Solve 20 problems

3

Beat your record

Press start to get 20 math problems. Enter each answer and clear them as quickly as you can. Accuracy and speed both matter.

What is Mental Math Time Attack 20?

Mental Math Time Attack 20 is a free browser game where you solve 20 arithmetic problems as quickly and accurately as possible. Use it for daily mental math practice and quick brain training.

Recommended for

  • People who want faster mental math
  • Anyone looking for quick brain training
  • Players who want a focused calculation game
  • Kids practicing arithmetic
  • Anyone who wants a short daily math workout

FAQ

Is Mental Math Time Attack 20 free?

Yes. You can play the 20-question mental math game in your browser for free.

What kind of problems appear?

The game includes addition, subtraction, and multiplication problems.

Can kids use it for math practice?

Yes. It is useful for short, rhythmic arithmetic practice.

Can I play on mobile?

Yes. It works in mobile and desktop browsers with no installation required.

Check your math speed today