This is a set of 52 task cards. The first 20 cards ask the students to write the number given in two other ways (standard, expanded, or word form.) The next 32 cards have students compare numbers in the thousands and millions. Each card has a QR code to make it self checking. A recording sheet for students is included. If you do not have ipods/ipads in the classroom, students can still complete the task cards and check their work using the answer key provided.