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GAME DETAIL

Calculation Against the Clock

Solve the operation before the pill runs out. The more you get right in a row, the more pills will appear at once.

Illustration of the game Calculation Against the Clock
Visual example
6+4

Type the result with the keyboard and press Enter before the bubble's red circle fills up.

? How to play

Pills keep appearing with an operation inside, each with its own countdown.

  1. Type the result using the number keypad below.
  2. Press Enter to check it — if it matches any active pill, it is solved.
  3. If you get several right in a row, more pills will start to appear at once.

THE NEXT STEP IS YOURS

Train Calculation Against the Clock in Reactiva+