What Are Fact Families?
Fact families are groups of math facts that use the same numbers!
Just like how you have family members who are all related, numbers can be related too. A fact family has four math facts - two addition and two subtraction - that all use the same three numbers. It's like a little number family living together in a math house!
How Fact Families Work
1️⃣ Find three numbers that belong together (like 2, 3, and 5)
2️⃣ Write two addition facts with these numbers
3️⃣ Write two subtraction facts with these numbers
Let's Explore Fact Families!
The 3, 4, 7 Family
3, 4, 7
Can you guess the four facts in this family?
3 + 4 = 7
4 + 3 = 7
7 - 3 = 4
7 - 4 = 3
Great job! See how all these facts use the same three numbers?
Build Your Own Family
Let's make a fact family with these numbers:
5, 2, ?
What's the missing number to complete this family?
Yes! The complete family is:
2 + 5 = 7
5 + 2 = 7
7 - 2 = 5
7 - 5 = 2
Parent Tips 🌟
- Use household objects: Create fact families with toys, buttons, or snacks. "If we have 2 red apples and 3 green apples, what addition and subtraction facts can we make?"
- Make it a game: Write numbers on index cards and have your child sort them into fact families. Time them for extra fun!
- Connect to real life: Point out fact families in everyday situations. "We have 8 cookies. If we eat 3, how many are left? That's part of the 3, 5, 8 family!"