✖️ Crossmath

Crossmath is a grid of interlocking equations: each row and each column of the 3×3 number grid must form a correct equation with the operators shown.

How to play

  1. Fill every blank cell with a digit.
  2. Check each across and down equation separately.
  3. Any arrangement that makes all six equations true solves it.

Difficulty affects grid size and time is your score — finish fast, post to the daily leaderboard, or race a friend.

All puzzles