TOFTI Memory Expedition

Explore three chambers of a lost number archive and match each equation with its answer. Matching cards are not identical pictures: one may contain an addition problem while its partner contains the result.

Each chamber contains four pairs, for twelve pairs across the adventure. Incorrect matches reduce your focus lives. Remember positions, calculate the result and look for its partner instead of flipping randomly. Your best score is stored in this browser.

How to play

Enter a nickname and open the archive. Click or tap two cards in turn. Match an equation with its correct answer; unmatched cards turn back over. Find all pairs in the chamber to advance.