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 charts Student worksheet to create their own clue cards 52 Guess My Number cards,