These simple, easy-to-read virtual flashcards can be used in many ways to help increase your students' subtraction fluency within 10. Here are a few ideas: Use them as a quick warm-up at the beginning of your daily math block. Have your students use them on an interactive device (such as a tablet) to quiz their friends.Quiz your students’ fluency by having them write down the answers as you flash through the slides (at a pace of about 5 seconds per slide). Go back and let the students check t