Workbook Detail
Mixed Operations Within 20 — Set 9
Exercise 1
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Answer: 13
- Operand1
- 2
- Operator
- +
- Operand2
- 11
Exercise 2
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Answer: 7
- Operand1
- 15
- Operator
- -
- Operand2
- 8
Exercise 3
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Answer: 8
- Operand1
- 8
- Operator
- ×
- Operand2
- 1
Exercise 4
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Answer: 1
- Operand1
- 6
- Operator
- ÷
- Operand2
- 6
Exercise 5
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Answer: 15
- Operand1
- 12
- Operator
- +
- Operand2
- 3
Exercise 6
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Answer: 4
- Operand1
- 6
- Operator
- -
- Operand2
- 2
Exercise 7
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Answer: 6
- Operand1
- 2
- Operator
- ×
- Operand2
- 3
Exercise 8
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Answer: 3
- Operand1
- 12
- Operator
- ÷
- Operand2
- 4
Exercise 9
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Answer: 9
- Operand1
- 3
- Operator
- +
- Operand2
- 6
Exercise 10
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Answer: 5
- Operand1
- 16
- Operator
- -
- Operand2
- 11
Exercise 11
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Answer: 5
- Operand1
- 20
- Operator
- ÷
- Operand2
- 4
Exercise 12
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Answer: 17
- Operand1
- 6
- Operator
- +
- Operand2
- 11
Exercise 13
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Answer: 17
- Operand1
- 19
- Operator
- -
- Operand2
- 2
Exercise 14
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Answer: 8
- Operand1
- 8
- Operator
- ×
- Operand2
- 1
Exercise 15
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Answer: 9
- Operand1
- 18
- Operator
- ÷
- Operand2
- 2
Exercise 16
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Answer: 19
- Operand1
- 16
- Operator
- +
- Operand2
- 3
Exercise 17
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Answer: 1
- Operand1
- 10
- Operator
- -
- Operand2
- 9
Exercise 18
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Answer: 6
- Operand1
- 2
- Operator
- ×
- Operand2
- 3
Exercise 19
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Answer: 1
- Operand1
- 9
- Operator
- ÷
- Operand2
- 9
Exercise 20
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Answer: 19
- Operand1
- 7
- Operator
- +
- Operand2
- 12
Teaching Notes
Download this free mixed 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 Mixed 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.