Hard printable 6 × 6 Calcudoku with answers
Six hard 6 × 6 Calcudoku grids with all four operations and no digits given away. They need pairs and row-and-column reasoning, but never a guess. A challenge for strong solvers.
- 6 puzzles on one A4 page
- 6 × 6 grids, hard level, all four operations, no given digits
- Answer key on the last page
Make a worksheet
Choose the puzzles, generate them, check the preview, then print. Each A4 page has name, date and class lines, numbered puzzles with room to work, and cryptarithm.com with the page number at the bottom; an answer key can follow on the last page.
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