Subtract your way through these math problems, and you'll be pleasantly surprised with the answer to a tricky riddle.

Practice addition and subtraction within 20 with this sweet Valentine’s Day math puzzle!

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

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.