Free printable Calcudoku with answers
Calcudoku, also called Mathdoku, is a Latin square with arithmetic cages: fill 1 to N once per row and column, and make every outlined cage reach its printed target. Every puzzle here has exactly one solution.
By size
Size is what makes a Calcudoku harder: a bigger grid gives the logic more room. Start small and work up.
Easy Calcudoku
Free printable easy Calcudoku with answers. A gentle small grid that solves in a few minutes, with the answer on page two. No sign-up.
Medium Calcudoku
Free printable medium Calcudoku with answers. An everyday grid with one solution. Print with the answer.
Hard Calcudoku
Free printable hard Calcudoku with answers. A bigger grid for a longer solve, with one solution. Print with the answer.
Large Calcudoku
Free printable large Calcudoku with answers. The biggest grid, for a long solve, with the answer on page two. No sign-up.
By audience
A smaller grid with a gentle rule is the easiest way for a child or a beginner to start.
One answer, every time
What makes a Calcudoku book worth printing is the guarantee most sellers cannot make: every puzzle is generated and proved by the same solver our Publisher Studio uses, so the clues fix exactly one solution. The answer prints at the back.
How to solve a calcudoku
Fill the grid with 1 to N once in each row and column so every outlined cage combines by its operator to its target.
The method
- 1Read each cage. The small label is the target and the operator the cage must reach: a sum, difference, product or quotient of its cells.
- 2Start with single-cell cages. A cage of one cell is just that number given, so place it first and let it constrain its row and column.
- 3List the combinations. For a cage, work out which sets of digits reach its target, then cross off any that repeat a digit in a shared row or column.
- 4Cross cages with rows and columns. A digit must satisfy its cage and keep its row and column to 1 to N once each. Where only one option does both, lock it in.
- The one rule
- 1 to N once per row and column, and every cage hits its target.
- What the answer page shows
- The completed grid is printed at the back.
- How the grades differ
- Bigger grids and larger cages leave more combinations to weigh.
- Good for
- Solvers who like arithmetic with their logic.
Make one now
Pick a size, then print the puzzle and its answer. No sign-up, no watermark.