Printable Fact Families Worksheets
Fact family worksheets help 1st and 2nd grade students connect addition and subtraction equations using three related numbers. These printable triangle mats feature equation writing and answer keys.
Fact Families Practice Pack. Ready to Print.
Structured, printable skill sheets with step-by-step guidance for Fact Families.
Build My PacketIncluded with Practice Buds MembershipTargeted Practice by Skill
Fact families to 20
Bond to four equations
Fact families to 20
Which fact does not belong
Write all four equations
Write four equations from three numbers
Fact family triangles
Fill in the missing triangle corner
Fact family triangles
Fact family flashcards
Turn-around facts
Write the turn-around fact
Turn-around facts
Same answer or not
Fact families with larger numbers
Write four equations, larger numbers
Fact families with larger numbers
Check addition using subtraction
About Fact Families
What this skill is
A fact family is a set of four related arithmetic facts using the same three numbers (two addition and two subtraction equations, such as 3+4=7, 4+3=7, 7-4=3, and 7-3=4).
When children learn it
Understanding the inverse relationship between addition and subtraction through fact families is a core 1st and 2nd grade standard (CCSS 1.OA.B.4).
Teaching Tips
- Draw a fact family roof: put the biggest number at the peak of the roof, and the two smaller numbers in the bottom corners. Remind your child that subtraction ALWAYS starts with the king at the top of the roof.
Common Mistakes
- Starting subtraction equations with one of the smaller addends instead of the largest total number (writing 4 - 7 = 3).
- Introducing a completely random fourth number that does not belong to the fact family.
- Writing identical addition sentences instead of flipping the addends with the commutative property.