Add the Numbers: Sums to 20

About this worksheet

Twenty vertical addition problems with sums up to 20, the core Grade 1 fluency target. The bold print and even grid make it easy to work down the page without losing your place.

Use it as a daily drill, a quick assessment, or homework. Pairs well with the Sums to 10 sheet as a next step.

What students will practice

• Add single-digit numbers with sums to 20
• Practice vertical addition layout
• Build fluency within 20

Details

Grade level

Grade 1

Subject

Math · Addition

Pages

1

Format

PDF · US Letter and A4 included

License

Free for classroom use · Attribution appreciated

Last updated

June 5, 2026