This mat is a great and fun way to practice/review decomposing numbers. I printed 6 mats, laminated them and used them in centers. This resource also includes number cards from 1 to 100, which I also printed and laminated them. In the center, students have to take a number, place it in the "number place" and complete the number bond, then frame and addition using a dry erase marker. You can select the number range you want to use for your class according to the student's age.