---
title: Subtraction Facts to 20
created: 2026-05-25
updated: 2026-05-25
type: lesson_topic
subject: math
tags: ['ccss', 'grade-2', 'homeschool', 'math', 'subtraction']
weeks: [5]
source: Home_School/2nd_Grade/Math/
---
## Overview
Subtraction Facts to 20 — Math curriculum topic for 2nd grade.
**Weeks covered:** Week_05
## Description
Subtraction fact fluency to 20. Relationship to addition, fact families, and fluency practice.
## Related Topics
- [[addition-facts-to-20]] (previous week)
- [[phase-1-checkpoint-fluency-number-sense]] (next week)
- [[math-curriculum-map]] (full Math curriculum overview)