Workbook Detail
Subtraction Number Range Subtraction Grade 1 Within 20 — Set 21
18 - 10 = ___
Show answer
Answer: 8
- Operand1
- 18
- Operand2
- 10
- Operator
- -
19 - 5 = ___
Show answer
Answer: 14
- Operand1
- 19
- Operand2
- 5
- Operator
- -
17 - 3 = ___
Show answer
Answer: 14
- Operand1
- 17
- Operand2
- 3
- 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
16 - 14 = ___
Show answer
Answer: 2
- Operand1
- 16
- Operand2
- 14
- Operator
- -
17 - 7 = ___
Show answer
Answer: 10
- Operand1
- 17
- Operand2
- 7
- Operator
- -
16 - 5 = ___
Show answer
Answer: 11
- Operand1
- 16
- Operand2
- 5
- Operator
- -
16 - 10 = ___
Show answer
Answer: 6
- Operand1
- 16
- Operand2
- 10
- Operator
- -
7 - 2 = ___
Show answer
Answer: 5
- Operand1
- 7
- Operand2
- 2
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":7,"role":"groupA"},{"count":2,"role":"groupB"}]CrossedCount: 2
17 - 10 = ___
Show answer
Answer: 7
- Operand1
- 17
- Operand2
- 10
- 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
12 - 1 = ___
Show answer
Answer: 11
- Operand1
- 12
- Operand2
- 1
- Operator
- -
18 - 6 = ___
Show answer
Answer: 12
- Operand1
- 18
- Operand2
- 6
- Operator
- -
17 - 5 = ___
Show answer
Answer: 12
- Operand1
- 17
- Operand2
- 5
- Operator
- -
19 - 7 = ___
Show answer
Answer: 12
- Operand1
- 19
- Operand2
- 7
- 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
12 - 10 = ___
Show answer
Answer: 2
- Operand1
- 12
- Operand2
- 10
- Operator
- -
17 - 6 = ___
Show answer
Answer: 11
- Operand1
- 17
- Operand2
- 6
- Operator
- -
18 - 17 = ___
Show answer
Answer: 1
- Operand1
- 18
- Operand2
- 17
- 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
Teaching Notes
Download this free subtraction grade 1 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 grade 1 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 Grade 1 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.