Many years ago, Jen Mueller taught me a math trick involving making 10s and three cards. I couldn't remember how to play so I looked on YouTube and found a variation using two cards. I modified that variation to remove the face cards and 10s, and the trick still worked! All good ideas are meant to be shared and modified to help children learn. Your students will LOVE this card trick, but it's not a trick at all! It's all strategy!