Workbook Detail
Mixed Operations Within 20 — Set 81
11 + 1 = ___
Show answer
Answer: 12
- Operand1
- 11
- Operator
- +
- Operand2
- 1
19 - 6 = ___
Show answer
Answer: 13
- Operand1
- 19
- Operator
- -
- Operand2
- 6
4 × 3 = ___
Show answer
Answer: 12
- Operand1
- 4
- Operator
- ×
- Operand2
- 3
8 ÷ 8 = ___
Show answer
Answer: 1
- Operand1
- 8
- Operator
- ÷
- Operand2
- 8
1 + 19 = ___
Show answer
Answer: 20
- Operand1
- 1
- Operator
- +
- Operand2
- 19
9 - 4 = ___
Show answer
Answer: 5
- Operand1
- 9
- Operator
- -
- Operand2
- 4
10 × 1 = ___
Show answer
Answer: 10
- Operand1
- 10
- Operator
- ×
- Operand2
- 1
10 ÷ 10 = ___
Show answer
Answer: 1
- Operand1
- 10
- Operator
- ÷
- Operand2
- 10
10 + 7 = ___
Show answer
Answer: 17
- Operand1
- 10
- Operator
- +
- Operand2
- 7
18 - 5 = ___
Show answer
Answer: 13
- Operand1
- 18
- Operator
- -
- Operand2
- 5
7 ÷ 7 = ___
Show answer
Answer: 1
- Operand1
- 7
- Operator
- ÷
- Operand2
- 7
3 + 11 = ___
Show answer
Answer: 14
- Operand1
- 3
- Operator
- +
- Operand2
- 11
11 - 10 = ___
Show answer
Answer: 1
- Operand1
- 11
- Operator
- -
- Operand2
- 10
10 × 1 = ___
Show answer
Answer: 10
- Operand1
- 10
- Operator
- ×
- Operand2
- 1
9 ÷ 9 = ___
Show answer
Answer: 1
- Operand1
- 9
- Operator
- ÷
- Operand2
- 9
12 + 3 = ___
Show answer
Answer: 15
- Operand1
- 12
- Operator
- +
- Operand2
- 3
20 - 18 = ___
Show answer
Answer: 2
- Operand1
- 20
- Operator
- -
- Operand2
- 18
6 × 2 = ___
Show answer
Answer: 12
- Operand1
- 6
- Operator
- ×
- Operand2
- 2
10 ÷ 2 = ___
Show answer
Answer: 5
- Operand1
- 10
- Operator
- ÷
- Operand2
- 2
2 + 15 = ___
Show answer
Answer: 17
- Operand1
- 2
- Operator
- +
- Operand2
- 15
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.