Daily 20
Same problems once a day
Mental Math Attack20
20 Questions.How Fast?
A free mental math game where you race through 20 arithmetic problems.
Daily challenge once per day / Practice anytime
Play Streak
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Gold
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Silver
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Bronze
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What You Can Do
Practice
Repeat freely at your pace
Compete
Rankings and groups
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What Is Mental Math Time Attack 20?
Mental Math Time Attack 20 is a free arithmetic game where you solve 20 calculation problems as fast as you can. It is built for quick mental math practice, short brain-training sessions, and friendly time-attack competition.
Free Mental Math and Arithmetic Practice
Use the daily challenge to compare your time with other players, or use practice mode to repeat addition, subtraction, multiplication, and two-digit arithmetic.
The game works on phones and computers, with an on-screen number pad designed for fast input.
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FAQ
Is Mental Math Time Attack 20 free?
Yes. You can play the 20-question mental math game for free in your browser, with no install required.
What kinds of problems appear?
The normal mode uses one-digit addition, subtraction, and multiplication. The two-digit mode focuses on two-digit addition and subtraction.
What is the difference between Daily and Practice?
Daily is a once-per-day challenge with the same problems for everyone. Practice can be played as many times as you like and does not affect the rankings.
Can kids use it for arithmetic practice?
Yes. It is designed for quick addition, subtraction, and multiplication practice, so it can be useful for children who want to build calculation fluency.
Is it useful as brain training?
Yes. Solving 20 problems quickly is a compact way to train focus, number sense, and mental calculation speed.