These riddles are based on place value concepts. Students will solve the riddles by identifying a number based on several clues. These clues could state that a digit is in a certain place value. The clues could also state, "There is a 5 that is ten times than the value of the 5 in the number 2,534." There is one class riddle for the class complete together as an example. Then, there are ten riddles for the students to solve.