What Are Fact Families? Plus How They Can Power Up Your Students’ Math Fluency

I remember when I taught seventh grade, I had a student who didn’t want to do division because it was “too hard.” I gently reminded him that he could solve the problem without having to divide because if he knew that 9 x 8 = 72, then he knew that 72 divided by 8 is 9. Because, you know … fact families. Fact families are a powerful strategy for students of all grade levels. Need a refresher? Let’s jump in.

What are fact families?  A fact family is a group of related math facts using the same three numbers. The three numbers make a family of four facts. For example: 4+3=7, 3+4=7, 7-4=3, 7-3=4.