Rote counting and ordering numbers 1-120 is an important skill for all primary age students to master. Your students will love this missing number fill-in activity because they will be practicing their rote counting skills, but it will feel like play to them. This activity is perfect for math rotations, a math center, individual practice, partner activity, or for early finishers. Students start by filling in the missing numbers on each pencil-themed activity card. Then, they can pick one of the