Every teacher will agree there isn't enough time in a school day-but have you ever thought about how much time in a day goes to waste? Between walking in the hallways, waiting for lunch, and other transitions it's more time than you would think!These cards are designed for a quick review of key skills so less time each day goes to waste. Just cut, hole punch, and go!This set is focused on subtraction up to 10. You will receive 66 cards from 0-0 to 10-10.Updated to include virtual learning option