Logical thinking is an important skill! This addition and subtraction puzzle will help your child focus on improving his mathematical reasoning while testing his computation abilities. This level 5 KenKen® game can be a bit of a challenge, so you may wish to help your child through if they are a beginner. Here's how to play:

Using the digits 1-5 in this 5x5 puzzle, fill the small squares with digits so as not to repeat a digit in any row or column, and so that the digits within each heavily outlined area will equal that area’s corner number when combined using the indicated operation. For more information visit www.kenken.com.

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