Three-digit Subtraction Task Cards:QR Code Math Task Cards
Three-digit Subtraction: QR CODE Task Cards contains 32 task cards. Each task card has a subtraction problem and students can solve these problems using 2 answer sheets and then scanning the QR code to check their answer.
This product is appropriate for reviewing and reinforcing 3-digit subtraction.
***Note: Most Smartphones will have a bar code scanner as an app that will read QR codes. For the desktop, you can also install a little bit of software that will use a webcam to read the codes.