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Zetamach

Weak spots

2-minute score

Arithmetic

Play 2:00or today’s daily challenge · drill your weak spots

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Two minutes. As many sums as you can.

Zetamach is a speed drill for mental arithmetic. You get 120 seconds of addition, subtraction, multiplication and division, and your score is how many you get right.

  • InterviewsQuant and trading interviews often include a timed arithmetic test like this. Many people training for them aim for 80+.
  • SpeedDaily rounds make the common facts automatic, so you stop working out 7 × 8 and just know it.
  • One numberEvery day ends with one honest score to beat tomorrow.
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