Easy 4 × 4 Mathdoku puzzles
Small grids with addition and subtraction cages only — a gentle first try.
Download Easy 4 × 4 (PDF)
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Free printable Mathdoku puzzles
Arithmetic cage puzzles in three sizes — also called Calcudoku. Fill the grid so no number repeats in a row or column and every cage makes its target. One puzzle per page, each with exactly one solution, answers at the back.
Free to print for home, classroom and club use.
- 30 puzzles3 sizes of 10
- 4 → 8squares across
- One solutionno guessing
- Answersat the back
Choose a set
Medium 6 × 6 Mathdoku puzzles
The classic size with all four operations: + − × ÷.
Download Medium 6 × 6 (PDF)
Hard 8 × 8 Mathdoku puzzles
Large grids with bigger cages and few one-square starts.
Download Hard 8 × 8 (PDF)How do you solve a Mathdoku puzzle?
Fill a grid of size N with the numbers 1 to N so each number appears once in every row and column. The heavy outlines mark cages: the digits in a cage must make the number in its corner with the operation shown. Subtraction and division cages have two squares, in either order. Fill one-square cages first, then look for cages with only one possible combination.
Which size should I print?
The easy 4 × 4 set uses only + and − and suits children around 8 and up or a first try. The 6 × 6 set uses all four operations and is the classic size for most adults. The 8 × 8 set has bigger cages and takes the longest.
Is Mathdoku the same as Calcudoku?
Yes. The same puzzle is printed under several names, including Mathdoku, Calcudoku and arithmetic cage puzzles. The rules are the same.
Can I make my own?
Yes. These puzzles were made with the DT Labs mathdoku generator. Choose any grid from 3 × 3 to 9 × 9, the operations, the difficulty or an expert mode with the operations hidden, and export a whole book with solutions. Exports come with a commercial licence for KDP and Etsy.
Frequently asked questions
Are these Mathdoku puzzles free?
Yes. Download and print as many copies as you like for home, classrooms and clubs. No account and no email needed.
Does every puzzle have one solution?
Yes. Each puzzle was checked by a solver that uses logic only; cages were changed until logic filled every square, so there is exactly one solution and no guessing.
Are the answers included?
Yes. The filled grids are at the back of each PDF, four to a page.
Can I sell these Mathdoku puzzles?
No — these PDFs are for printing and solving, not for resale. To sell Mathdoku books, make your own with the free Mathdoku generator, which comes with a commercial licence.