Workbook Detail
Subtraction Number Range Within 20 — Set 28
2 - 1 = ___
Show answer
Answer: 1
- Operand1
- 2
- Operand2
- 1
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":2,"role":"groupA"},{"count":1,"role":"groupB"}]CrossedCount: 1
4 - 2 = ___
Show answer
Answer: 2
- Operand1
- 4
- Operand2
- 2
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":4,"role":"groupA"},{"count":2,"role":"groupB"}]CrossedCount: 2
4 - 3 = ___
Show answer
Answer: 1
- Operand1
- 4
- Operand2
- 3
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":4,"role":"groupA"},{"count":3,"role":"groupB"}]CrossedCount: 3
9 - 5 = ___
Show answer
Answer: 4
- Operand1
- 9
- Operand2
- 5
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":9,"role":"groupA"},{"count":5,"role":"groupB"}]CrossedCount: 5
4 - 2 = ___
Show answer
Answer: 2
- Operand1
- 4
- Operand2
- 2
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":4,"role":"groupA"},{"count":2,"role":"groupB"}]CrossedCount: 2
4 - 1 = ___
Show answer
Answer: 3
- Operand1
- 4
- Operand2
- 1
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":4,"role":"groupA"},{"count":1,"role":"groupB"}]CrossedCount: 1
17 - 2 = ___
Show answer
Answer: 15
- Operand1
- 17
- Operand2
- 2
- Operator
- -
6 - 1 = ___
Show answer
Answer: 5
- Operand1
- 6
- Operand2
- 1
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":6,"role":"groupA"},{"count":1,"role":"groupB"}]CrossedCount: 1
15 - 12 = ___
Show answer
Answer: 3
- Operand1
- 15
- Operand2
- 12
- Operator
- -
20 - 10 = ___
Show answer
Answer: 10
- Operand1
- 20
- Operand2
- 10
- Operator
- -
5 - 1 = ___
Show answer
Answer: 4
- Operand1
- 5
- Operand2
- 1
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":5,"role":"groupA"},{"count":1,"role":"groupB"}]CrossedCount: 1
12 - 11 = ___
Show answer
Answer: 1
- Operand1
- 12
- Operand2
- 11
- Operator
- -
17 - 6 = ___
Show answer
Answer: 11
- Operand1
- 17
- Operand2
- 6
- Operator
- -
19 - 2 = ___
Show answer
Answer: 17
- Operand1
- 19
- Operand2
- 2
- Operator
- -
17 - 6 = ___
Show answer
Answer: 11
- Operand1
- 17
- Operand2
- 6
- Operator
- -
6 - 5 = ___
Show answer
Answer: 1
- Operand1
- 6
- Operand2
- 5
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":6,"role":"groupA"},{"count":5,"role":"groupB"}]CrossedCount: 5
15 - 2 = ___
Show answer
Answer: 13
- Operand1
- 15
- Operand2
- 2
- Operator
- -
2 - 1 = ___
Show answer
Answer: 1
- Operand1
- 2
- Operand2
- 1
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":2,"role":"groupA"},{"count":1,"role":"groupB"}]CrossedCount: 1
17 - 3 = ___
Show answer
Answer: 14
- Operand1
- 17
- Operand2
- 3
- Operator
- -
3 - 1 = ___
Show answer
Answer: 2
- Operand1
- 3
- Operand2
- 1
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":3,"role":"groupA"},{"count":1,"role":"groupB"}]CrossedCount: 1
Teaching Notes
Download this free subtraction within 20 math worksheet. Uniquely generated with an answer key — great for homework, practice, or assessment.
Features
- Printable PDF format
- Answer key included
- Multiple difficulty levels
- Classroom and home friendly
How to Use These Worksheets
- Select a within 20 set.
- Print or use on-screen.
- Check answers and practice again.
Tips
- Start with easier sets and move up gradually.
- Practice in short sessions (10–15 minutes).
- Review mistakes and redo similar problems.
Frequently Asked Questions
How do I use this Subtraction Within 20 Math Worksheet worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.