Cross Math

Each row and each column of the grid is an equation, like 3 + 4 × 2 = 14. Some numbers are missing — fill every empty square with a number tile from the bank below so that all equations are true at the same time.

Important: equations are worked out strictly from left to right (rows) and from top to bottom (columns) — there is no operator precedence. So 3 + 4 × 2 means (3 + 4) × 2 = 14. Division always comes out exact.

Controls

• Tap a tile in the bank, then tap an empty square — or drag the tile onto the square.
• Tap a filled square to send its tile back to the bank.
• Keyboard: select a square, then type its number and press Enter; Backspace clears it.
• Check colours each equation green or red. Hint fills one square correctly.

Levels

Levels get bigger and harder: from 2×2 grids with + and − up to 4×4 grids using all four operations. Every level is generated from a solved grid, so it always has a solution — and any arrangement that makes every equation true counts. Your progress and best times are saved.