Do your students like puzzles? Then they'll love helping Sammy the Seal solve this one!

Kids solve addition and subtraction problems with one- and two-digit numbers to crack the code and find the mystery word on this first grade math worksheet.

Your students can use their knowledge of simple addition and subtraction facts to solve this KenKen® puzzle.

Will your students help Tommy the Toucan solve this KenKen® puzzle? They'll need their addition and subtraction facts and the numbers 1 through 4.