Math speed challenge

Sixty seconds of mental math — addition to division, difficulty rising with your streak.

Solve as many problems as you can before the clock runs out. Difficulty climbs with your streak.

Timed in this browser. Nothing is sent anywhere.

How to use

  1. Press start.
  2. Answer problems before time runs out.
  3. Beat your solved count.

What it supports

60-second runs; +−×÷ with integer answers (division is built divisor × quotient first). Tier 1 after 5 in a row, tier 2 after 12, including negatives. A streak resets on a miss.

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