Number Cross
A crossword where every answer is a number. Work out each sum, such as 12 times 7 or 3 across plus 9, and write the digits in the grid, where across and down answers share squares.
- Math
- New puzzle every day
- Free, plays in your browser
- Mouse or touch
- Added 30 October 2026
- #crossnumber
- #dailypuzzle
- #maths
- #arithmetic
- #crossword
- #levels
Number Cross
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Loading Number Cross 0%Watch a 20-second trailer
A real run of the game, recorded with captions and no sound.
How to play
- Every clue is a sum that works out to a whole number. The number of digits is shown beside the clue.
- Some clues lean on another answer, such as 2 across plus 9 or twice 5 down. Solve the other answer first.
- Where an across answer and a down answer cross they share a digit, so one answer helps you check another.
- Tap a square, tap a digit and the grid fills. The puzzle is solved when every square is right. A new puzzle arrives every day, and there are thirty levels.
Controls: mouse or touch. Made by CalcoTools.
Tips and strategy
- Begin with the clues that need no other answer, such as plain products or squares.
- Use the crossing squares: if you know one digit of a clue you can often test the sum.
- A clue like 3 down − 12 gives you the answer as soon as you know 3 down.
- Check your sums by working backwards: multiply, then divide the result by one of the numbers.
FAQ
- Can an answer start with zero?
- No. Every answer starts with a digit from 1 to 9.
- Is there only one answer for each clue?
- Yes. Each clue works out to one number, and the clues that refer to another answer can be worked out in a fixed order.
- What do the small numbers in the squares mean?
- They number the clues, the same way a crossword does.
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