FREE PRINTABLE MATH WORKSHEETS
Addition and Subtraction Within 20 Worksheets
Free printable add and subtract within 20 worksheets with answer keys. Select from 14 core, review and application options for individual practice.
Choose your practice
This skill collection contains 14 worksheet options. Choose a practice type below, preview the worksheet and answer key, then print. These levels describe skills rather than a specific country's grade requirements.
Open add and subtract within 20 practice →Core practice
- Addition within 20 · horizontal
- Subtraction within 20 · horizontal
- 1-digit plus 1-digit · horizontal
- 1-digit plus 1-digit · vertical
Review skills
Earlier skills to revisit before working on this topic.
- Addition within 9 · horizontal
- Subtraction within 9 · horizontal
- Number bonds within 9
- Addition within 5 · horizontal
- Make 10
- Addition within 10 · horizontal
- Subtraction within 10 · horizontal
- 1-digit minus 1-digit · horizontal
- 1-digit minus 1-digit · vertical
Word problems
Using the worksheets
- Select a skill and worksheet format.
- Preview the questions and answers.
- Use the number-change control to generate another set, or print your selected pages.
Start with core practice. Revisit review skills when needed, then use missing-number and word problems to check understanding.