---
title: Fact Families Within 20 — Free Worksheets & Games
canonical: https://workbookbench.com/workbook/fact-families-within-20
license: https://workbookbench.com/license
---

# Fact Families Within 20

Fact Families Within 20: Derive the four related facts from one addition family within 20 (CCSS 1.OA.6). Below: 56 math facts, 1 game, 1 printable worksheet, free, no login, no watermark.

## Math facts (56)
2 + 9 = 11
3 + 8 = 11
4 + 7 = 11
5 + 6 = 11
3 + 9 = 12
4 + 8 = 12
5 + 7 = 12
6 + 6 = 12
2 + 11 = 13
4 + 9 = 13
5 + 8 = 13
6 + 7 = 13
2 + 12 = 14
3 + 11 = 14
5 + 9 = 14
6 + 8 = 14
7 + 7 = 14
2 + 13 = 15
3 + 12 = 15
4 + 11 = 15
6 + 9 = 15
7 + 8 = 15
2 + 14 = 16
3 + 13 = 16
4 + 12 = 16
5 + 11 = 16
7 + 9 = 16
8 + 8 = 16
2 + 15 = 17
3 + 14 = 17
4 + 13 = 17
5 + 12 = 17
6 + 11 = 17
8 + 9 = 17
2 + 16 = 18
3 + 15 = 18
4 + 14 = 18
5 + 13 = 18
6 + 12 = 18
7 + 11 = 18
9 + 9 = 18
2 + 17 = 19
3 + 16 = 19
4 + 15 = 19
5 + 14 = 19
6 + 13 = 19
7 + 12 = 19
8 + 11 = 19
2 + 18 = 20
3 + 17 = 20
4 + 16 = 20
5 + 15 = 20
6 + 14 = 20
7 + 13 = 20
8 + 12 = 20
9 + 11 = 20

## Games (1)
Build a fact family

## Printables (1)
https://workbookbench.com/print/fact-families-within-20
Ten frame addition

## License and provenance
Free for classroom use — print, play and share. Images and audio are Creative Commons BY 4.0.