About this worksheet
A clean number line subtraction worksheet with a cheerful frog theme. Children read each problem, hop backward along the 1 to 19 number line, and write the difference in the box. The number line gives kids a concrete way to see subtraction as counting back.
Thirty-three problems within 20. Great as a strategy lesson before moving to written facts, or as steady practice once counting back is familiar.
What students will practice
- Subtract within 20 on a number line
- Practice counting back to subtract
- Connect the number line to subtraction facts
Details
- Grade level
- Grade 1
- Subject
- Math · Subtraction
- Pages
- 1
- Format
- PDF · US Letter and A4 included
- License
- Free for classroom use · Attribution appreciated
- Last updated
- June 24, 2026
