KenKen Puzzle
KenKen® Puzzle
Think inside the box with KenKen® puzzles to provide some problem solving practice. These puzzles are similar to Sudoku, but require computation inside designated boxes. There are multiple puzzles with a range of difficulties to...
University of Cambridge
University of Cambridge: Nrich: Clever Santa
Help Santa figure out how many puzzles and books to leave for the children of this family. Once you figure it out you can check the solution.