Math riddles are a fun way to inspire critical thinking and problem solving skills in your students. In this download you will receive 20 printable riddle cards that give a series of clues for your students to guess the number. Clues include prime numbers, odd or even numbers, comparing numbers, multiples, factors, and more. There is also a student worksheet that helps them to build their own riddle. When the students finish the worksheet you can cut out the riddles to make your own class set of math riddles to be used all year! Add some excitement to your next math class with these riddles!