Montessori Math Operations Command Cards are tools for independent math practice. They enable students to reinforce their understanding of addition, subtraction, multiplication, and division, enhancing their mathematical skills through repeated practice and self-correction. This work includes static and dynamic questions. Includes: 64 addition cards and 64 answer cards 64 multiplication cards and 64 answer cards 64 subtraction cards and 64 answer cards 64 division cards and 64 answer cards Color-coded according to the Montessori math hierarchical colors. There is a 'd' (dynamic) or 's' (static) printed in the bottom corner of each card. Cards can be printed and folded, with the answers on the back. Cards are approx. 2½" x 3¾". The files are in PDF format. The download is a ZIP file you must unzip before accessing the individual PDFs.