Workbook Detail
Subtraction Within 20 Hard — Set 42
17 - 2 = ___
Show answer
Answer: 15
- Operand1
- 17
- Operand2
- 2
- 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
5 - 2 = ___
Show answer
Answer: 3
- Operand1
- 5
- Operand2
- 2
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":5,"role":"groupA"},{"count":2,"role":"groupB"}]CrossedCount: 2
15 - 5 = ___
Show answer
Answer: 10
- Operand1
- 15
- Operand2
- 5
- Operator
- -
5 - 4 = ___
Show answer
Answer: 1
- Operand1
- 5
- Operand2
- 4
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":5,"role":"groupA"},{"count":4,"role":"groupB"}]CrossedCount: 4
18 - 15 = ___
Show answer
Answer: 3
- Operand1
- 18
- Operand2
- 15
- Operator
- -
7 - 6 = ___
Show answer
Answer: 1
- Operand1
- 7
- Operand2
- 6
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":7,"role":"groupA"},{"count":6,"role":"groupB"}]CrossedCount: 6
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
9 - 7 = ___
Show answer
Answer: 2
- Operand1
- 9
- Operand2
- 7
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":9,"role":"groupA"},{"count":7,"role":"groupB"}]CrossedCount: 7
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
12 - 2 = ___
Show answer
Answer: 10
- Operand1
- 12
- Operand2
- 2
- Operator
- -
8 - 4 = ___
Show answer
Answer: 4
- Operand1
- 8
- Operand2
- 4
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":8,"role":"groupA"},{"count":4,"role":"groupB"}]CrossedCount: 4
9 - 8 = ___
Show answer
Answer: 1
- Operand1
- 9
- Operand2
- 8
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":9,"role":"groupA"},{"count":8,"role":"groupB"}]CrossedCount: 8
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
19 - 10 = ___
Show answer
Answer: 9
- Operand1
- 19
- Operand2
- 10
- Operator
- -
12 - 10 = ___
Show answer
Answer: 2
- Operand1
- 12
- Operand2
- 10
- Operator
- -
18 - 10 = ___
Show answer
Answer: 8
- Operand1
- 18
- Operand2
- 10
- Operator
- -
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
8 - 5 = ___
Show answer
Answer: 3
- Operand1
- 8
- Operand2
- 5
- Operator
- -
- VisualIntent
- Layout: picture-equationOperation: subtractItems: [{"count":8,"role":"groupA"},{"count":5,"role":"groupB"}]CrossedCount: 5
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
Practice subtraction within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Subtraction Within 20 Hard Worksheets 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.