Addition & Subtraction within 20 - Fact Fluency Flash Cards
Below are links to addition and subtraction fact cards you can print and practice at home. Please note that the facts have been broken down into 7 lists. At home, begin with the "white belt" list and make sure your child can quickly recall those facts before working on the "yellow belt" list and so on. The last link is a "karate belt" chart your child can use to track the facts s/he has mastered.