About this game

Crossmath Challenge is a number puzzle in which you complete maths equations arranged in a crossword-style grid. Each equation runs across or down, and the tiles you place need to make all of them correct.

The rules are easy to understand, but the puzzles can be tricky, because each tile often belongs to two equations at once. Undo, shuffle and a limited hint function are available to help you when you are stuck.

Pick a number tile from the row below the board, then choose an empty square to put it there, or simply drag the tile straight into position. The game runs on computers and mobile devices in landscape mode. Start with cells that belong to only one equation, since their value is easier to work out, and filling them in narrows down the options for the more complicated crossings.

Liked it? Try Royal Smash Puzzle Game, Arrow Cube 3D or Pics 2 Word next.

How to play

Tap or click a tile from the tray at the bottom then tap an empty cell in the grid to place it You can also drag a tile directly onto a cell Tap Undo to remove your last placement Shuffle to reorder your tray and Hint to auto-fill a cell limited use