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Mental Arithmetic — Free Mental Math Practice Online

Multi-step problems, nothing but your head.

  • Mental math
  • 4 min
  • Medium

Multi-step arithmetic is a working-memory task disguised as a maths task. The hard part is not the sums — it is holding an intermediate result steady while you compute the next one. That storage-plus-processing combination is exactly what the phonological loop is for.

Play Mental Arithmetic

How it works

1A multi-step expression appears.

2Work it left to right, holding the middle result.

3Type the answer on the keypad.

A multi-step expression appears. Solve it in your head and type the answer before the timer runs out.

How to play

  1. 1

    Read the problem

    An arithmetic expression appears. Early levels are two terms; later ones chain three or more operations.

  2. 2

    Solve it in your head

    No paper, no calculator. Work left to right and hold the intermediate result.

  3. 3

    Type your answer

    Use the on-screen keypad. Correct answers push the level up, wrong ones cost a life.

What it trains

Compute fast without writing anything down. Multi-step calculation loads the phonological loop, the part of working memory that holds verbal and numeric material while you operate on it.

Brain area
Prefrontal cortex + phonological loop
Based on
Baddeley & Hitch, 1974

Leaderboard

Weekly season resets every Monday. Scores show as Lvl 5.

Leaderboard

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Questions

Are the problems timed?

Yes, and the clock tightens as you level up. Speed pressure is what forces the shortcut strategies to develop.

Can I use paper?

You can, but it defeats the exercise. The load on working memory is the training effect.

Which level is average?

Most players settle between levels 3 and 5. Level 7+ takes deliberate practice with multiplication shortcuts.

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Ready to play Mental Arithmetic?

4 minutes. No account needed.

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