Blast Off! Add to 20

About this worksheet

Five big, bold add-to-20 problems wrapped in a colorful space theme, rockets, planets, and astronauts cheering kids on. The large numerals and short problem set make it approachable for first graders who need a confidence boost.

A fun warm-up or brain break that still gets real fluency practice in. Great for a space unit or just a change of pace.

What students will practice

• Add numbers with sums to 20
• Write each answer in the box
• Stay engaged with a space theme

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