Printable Calcudoku puzzles, ready for pencil.
Each pack is a black-and-white A4 booklet of Calcudoku grids, with the answer key starting on its own page. Cage borders are heavy, and each cage’s target and operator sit in its top-left corner.
- 12 free packs
- 4×4 · 5×5 · 6×6 · 7×7
- Answer key included
- No sign-up
- A4
- A4
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Build your own pack
Mix sizes and difficulties in one PDF: say ten easy 4×4 warm-ups, then a few medium 7×7 grids. Up to 100 puzzles, answers included.
- Up to 6 sections
- A4 or US Letter
- Made in your browser
Sections
1 / 6Each section adds puzzles of one size and difficulty, in order.
8 pages: 4 of puzzles, 4 of answers
Your page preview lands here
Press Generate to build 8 puzzles in your browser. Nothing is uploaded, and you can page through every puzzle and answer page here before you download.
How does the pack builder work?
Everything happens on your device. When you press Generate, your browser creates each Calcudoku grid from the pack seed, solves it to make the answer key, and lays the pages out as a PDF. Nothing is uploaded and there’s no account. Four 4×4 or 5×5 grids share a sheet, and two 6×6 or 7×7 grids share a sheet. Tick Large print if you want one big grid per page. 7×7 comes in easy and medium. Each puzzle prints with its number and seed, so answers line up even when you keep them in a separate PDF. The same seed and settings always give the same puzzles. Use Copy share link to send a class or a friend the exact same pack, or press shuffle for a fresh set.
Want Calcudoku next to Sudoku in one PDF? Build a mixed pack.
Just want one grid?
Open Calcudoku, choose a size and difficulty, then press Print. You get a single clean sheet of that puzzle.
- 1
Download
Pick a size and difficulty. Every file is a small A4 PDF.
- 2
Print in black & white
4×4 fits four to a page, 5×5 fits four to a page, 6×6 fits two to a page, 7×7 fits two to a page.
- 3
Check the answers
The answer key starts on its own page, so you won’t spoil the next puzzle.
About these Calcudoku packs
Print a Calcudoku pack and solve it with a pencil. Calcudoku, also called Mathdoku, mixes a Latin square with arithmetic: every row and column holds each digit once, and the digits in each heavy-bordered cage must make the target in its corner with the operator shown (+, −, × or ÷). Each file is a black and white booklet: the puzzles come first, and the answer key starts on its own page. Packs are split by size and difficulty, from 4×4 up to 7×7. A 4×4 or 5×5 sheet holds four puzzles, and a 6×6 or 7×7 sheet holds two. Seeds are fixed, so the same download always has the same grids. Each single pack has eight puzzles, and the starter pack has one puzzle from each of the 11 packs, so 7×7 comes in easy and medium. To try one grid on screen first, open Calcudoku and use Print or Download PDF there.