Guess My Number is an engaging, exciting, and rigorous way to increase your students' fluency, mathematical thinking, and number sense.These cards can be used as a math warm up, in small groups, or even during transitions.Each card has four clues, which lead students around a hundreds board, stopping at the number "to guess."Included in this resource:5 options for hundreds boards (black/white and color)Anchor chartsStudent worksheet to create their own clue cards52 Guess My Number cards, offered