These 60 task cards allow your students to practice building numbers up to 99 using manipulatives. One side of each task card shows the number (standard form). Your students use manipulatives to build the number on the task card. Then they flip over the card to view the manipulative representation of the number to see if they were able to build the number correctly. These task cards are easy to use as individual, partner, or small group practice, as a fast finisher activity, a center activity,