Can digits repeat in the same row or column?

Yes — unlike Sudoku, Math Crossword allows the same digit to appear multiple times as long as every equation balances.

What if I can't find a valid digit for a cell?

Usually means an earlier entry was wrong — check which equations share that cell and work backward.

Are there multiple valid solutions?

Each puzzle is designed to have exactly one solution where all equations balance simultaneously.

Math Crossword

Puzzle Games

Math Crossword replaces words with equations — each row and column is an arithmetic expression that must equal the number shown at its end. It's a crossword puzzle where the answers are single digits placed in grid cells to satisfy intersecting equations simultaneously.

Fill cells with digits 0-9 so that every horizontal equation and every vertical equation balances. A single cell belongs to two equations at once, so a digit that satisfies one must also satisfy the other — that's the constraint that makes it interesting. Operations include addition, subtraction, multiplication, and division. Difficulty scales by equation complexity and grid size.

Best for players who are comfortable with mental arithmetic and enjoy logic deduction puzzles. Not a speed game — no timer unless you want one. Tip: start with cells that appear in equations using only addition — they have fewer valid digits and constrain the rest of the grid faster.

FAQ

Can digits repeat in the same row or column?: Yes — unlike Sudoku, Math Crossword allows the same digit to appear multiple times as long as every equation balances.
What if I can't find a valid digit for a cell?: Usually means an earlier entry was wrong — check which equations share that cell and work backward.
Are there multiple valid solutions?: Each puzzle is designed to have exactly one solution where all equations balance simultaneously.