2nd Grade Subtraction on an Open Number Line Worksheet
Use the open number line to subtract by jumping back — tens first, then ones.
- Homework
- Centers
- Review
- Intervention
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- Grade
- 2nd Grade
- Subject
- Math
- Skill
- Subtraction
- Topic
- subtracting on an open number line
- Difficulty
- Standard
- Time
- 14 minutes
- Pages
- 2 (incl. answer key)
- Format
- Printable PDF (US Letter)
- Answer key
- Included
- Best for
- homework, centers, review, intervention
Worksheet details
What This Worksheet Practices
Students will subtract two-digit numbers on an open number line by jumping back by tens and ones.
- Starting at the larger number
- Jumping back by tens, then ones
- Landing on the difference
Worksheet Preview
Counting back to subtract
On an open number line, subtraction is counting back. To solve 54 − 20, start at 54 and make two jumps of ten to the left, landing on 34. Subtracting the tens first, then the ones, is the same mental strategy second graders use — the line just makes it visible. Jumps don’t have to be to scale.
How to use it
Have students start at the bigger number and jump back by tens, then ones. Watch for students who jump the wrong way. This mirrors addition on the open number line and supports subtraction with regrouping.
👩🏫 Teacher note
Subtraction on the open number line is counting back. Start at the bigger number and make jumps of ten to the left, then ones. The line shows the strategy; jumps need not be to scale.
🏠 Parent note
Start at the bigger number and jump backward — by tens first, then ones. Where you land is the answer.
Common Mistakes to Watch For
- Jumping forward instead of back
- Jumping the wrong number of tens or ones
Answer Key
Each answer shows the difference (where you land).
⬇ Download Answer Key (PDF)Related Worksheets
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Use the open number line to add two-digit numbers by jumping tens, then ones.
2-Digit Subtraction with Regrouping Worksheet
Practice two-digit subtraction that requires borrowing a ten — step by step.
2-Digit Subtraction Without Regrouping Worksheet
Subtract two-digit numbers by subtracting the ones and the tens separately - no borrowing needed.
100 More, 100 Less Worksheet
Find 100 more and 100 less than a number by adding or removing one hundred-flat.
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