Free Addition & Subtraction Fact Families Generator
Create a printable fact families worksheet in seconds. Choose a number range, set how many families to include, and download a clean US Letter PDF with triangle diagrams and four equations per family. Perfect for 1st and 2nd grade math.
Configuration
How to Use the Fact Family Worksheet Generator
- 1
Choose your settings
Select the number range for the addends (1–5, 1–10, 1–20, or 1–50) and how many fact families to include (4, 6, 8, or 10).
- 2
Generate and preview
Click Create Worksheet. Each family is shown as a triangle with the sum at the top and the two addends at the corners. Students write all four equations in the spaces below.
- 3
Print or download PDF
Click Download Free to save a print-ready US Letter PDF. Click Show Answers to reveal all correct answers in red before printing your answer key.
Frequently Asked Questions
What is a fact family?
A fact family is a set of four related math equations using the same three numbers. For example, 3, 4, and 7 form the family: 3+4=7, 4+3=7, 7−3=4, and 7−4=3.
Is this fact family worksheet generator free?
Yes, completely free with no account or sign-up required. Generate and download unlimited fact family worksheets.
How does the triangle format work?
The sum is shown at the top of the triangle and the two addends are at the bottom corners. Students use those three numbers to write all four addition and subtraction equations below.
What grade levels are fact families for?
Fact families are typically introduced in 1st and 2nd grade as part of understanding the relationship between addition and subtraction.
Can I see the answer key?
Yes. Click Show Answers below the preview to reveal all correct answers in red, then print a separate copy as your answer key.
