This is a great, active way for learners to review foundational math skills. Simply print, laminate (or skip it), and cut the strips out. Place the strips around the room and have students move around the room to complete the problem on each strip and record their answer on the recording sheet. The strips are lettered from A-Z - starting with easier problems and getting harder as you move to Z. The strips have sequences of four numbers, with one number missing in each sequence. Numbers go up to 120 and count both forward and backwards. A 100 chart is included for reference for your students.