Equate 8 is an innovative and addicting new math puzzle game by the creator of The Devil's Calculator. Rearrange numbers in a 3x3 grid to solve eight equations (3 across, 3 down, and 2 diagonal) in the fewest moves possible. Challenges involve a variety of operators and difficulty levels. The game tallies your moves -- go for the gold!

Solving the grid in fewer moves will gain a silver or gold medal, but a bronze is awarded regardless, so don't stress. The daily puzzle gives players a free way to play and unlock content. Acquire “streaks” tokens by playing regularly. Exchange medals and streaks for Challenges, packs of themed puzzles.

If the squares seem too complicated, open the menu to try Easy Mode. A number will automatically be locked (circled) when in the correct place. This mode can be played in a limited number of sequences before it reverts to the default. Donate to our nonprofit for access to unlimited difficulty levels.

Equate 8 is a fun casual game for all ages, whether practicing math skills or engaging brainpower. Donations support the mission of Cinq-Mars Media, a 501(c)(3) nonprofit to develop educational games, always provided free to teachers and students.