# Free Printable 4 by 4 MathDoku Puzzles

At PuzzlesAndBrains we have a great selection of

**printable MathDoku puzzles**in 3 PDF formats: the 4 by 4 (as listed on this page), the 6 by 6 MathDokus and the challenging 9 by 9 MathDokus. The rules easy to understand and we offer our PDF puzzles in

**3 difficulty levels**: Easy, Medium, and Head Banging Hard.

**basic rules and solving techniques**.

**Ken Ken puzzles are trademarked**

The famous math and logic KenKen puzzles are a trademarked name and it is not allowed to use this name in puzzles. You are allowed, however, to use other names such as MathDoku. Our printable MathDoku puzzles have similar rules but come in a different name. MathDoku is a mix between Sudoku and Kakuro, you will need both logic and math skills.

**Cells with target numbers**

The grid is divided in so-called cages with target numbers. These numbers are the answers to a mathematical operation and are the product, sum, difference or quotient of this operation depending on the printed operator in the cage. MathDoku allows you to use a digit only once per column or row which is the same as in Sudoku. MathDoku is not only a math puzzle but also a logic puzzle.

**MathDoku cage combinations**

The more you play MathDoku puzzles, or KenKen puzzles, the more you will recognize certain number combination. A target number of 504 in a 3 cell grid, can only be 7 x 8 x 9. There are a lot of these fixed combinations and the more you play this number puzzle the more you will recognize them.

**MathDoku is great for math students**

Because of the arithmetical character of the puzzle, it is very suited for math students. The ability to find the digits that make up operations will enhance their number feeling and will benefit students greatly. MathDoku can be integrated in lessons as remedial learning material or as positive reinforcement for students that finished their work already.

We also offer Mathdoku math and logic puzzles in the 6 by 6 and 9 by 9 formats in the 3 difficulty levels:
Easy, Medium and Hard.

Click on the images to the left to go the PDF download pages of our other printable KenKen-like puzzles. **They are free, without registration** and very addictive. You are warned.