If you are looking for more place value practice for your students or valuable center work, this a great purchase! Included in this document is three sets of corresponding cards. Students match numbers in number or standard form, word form, and expanded form. Each card includes a QR code that allows students to check their work immediately in a fun way.
For more QR fun, check out this listing: https://www.teacherspayteachers.com/Product/QR-Code-Centers-Nouns-1406510