Information for teachers
| Calcudoku improves numeracy Try a few yourself and you immediately realize: you don't just need logic reasoning to solve Calcudoku puzzles, but you also have to do quite some number crunching. Children learn about logic, numbers, and solving strategies while playing. |
| Participate with your class At the site you can have a separate rankings list for your class only. Send an e-mail to with your school's (and optionally class) name in order to set this up. Puzzlers who sign up on the school/class registration page automatically have ads disabled on the puzzle page. |
| Books etc. Download the free book 'Calcudoku, 100 Free Puzzles', with 100 puzzles ranging from very easy to quite difficult: 
And here's a tutorial video: How to solve a Calcudoku puzzle on Youtube. Other Calcudoku videos are here.
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