How to play
- Study the visible values and decide what changes from one position to the next.
- Enter the missing value without using a hint when possible.
- After submitting, read the explanation before moving to a new pattern.
What this game practices
A strong warm-up for explaining a rule in words. It should not be presented as a formal algebra assessment because several patterns can sometimes be extended in more than one mathematically valid way.
How we checked it
Original coolmath game. Test cases include increasing, decreasing, alternating, and multiplicative sequences with answer validation.
Reviewed by coolmath Editorial Team · Updated 2026-09-20