Workbook Detail
Addition Special Types Missing Addend — Set 80
35 + 10 = ___
Show answer
Answer: 45
- Operand1
- 35
- Operand2
- 10
- Operator
- +
15 + 54 = ___
Show answer
Answer: 69
- Operand1
- 15
- Operand2
- 54
- Operator
- +
71 + 18 = ___
Show answer
Answer: 89
- Operand1
- 71
- Operand2
- 18
- Operator
- +
65 + 32 = ___
Show answer
Answer: 97
- Operand1
- 65
- Operand2
- 32
- Operator
- +
18 + 11 = ___
Show answer
Answer: 29
- Operand1
- 18
- Operand2
- 11
- Operator
- +
54 + 40 = ___
Show answer
Answer: 94
- Operand1
- 54
- Operand2
- 40
- Operator
- +
42 + 11 = ___
Show answer
Answer: 53
- Operand1
- 42
- Operand2
- 11
- Operator
- +
10 + 31 = ___
Show answer
Answer: 41
- Operand1
- 10
- Operand2
- 31
- Operator
- +
40 + 45 = ___
Show answer
Answer: 85
- Operand1
- 40
- Operand2
- 45
- Operator
- +
34 + 13 = ___
Show answer
Answer: 47
- Operand1
- 34
- Operand2
- 13
- Operator
- +
25 + 62 = ___
Show answer
Answer: 87
- Operand1
- 25
- Operand2
- 62
- Operator
- +
23 + 41 = ___
Show answer
Answer: 64
- Operand1
- 23
- Operand2
- 41
- Operator
- +
14 + 81 = ___
Show answer
Answer: 95
- Operand1
- 14
- Operand2
- 81
- Operator
- +
11 + 30 = ___
Show answer
Answer: 41
- Operand1
- 11
- Operand2
- 30
- Operator
- +
25 + 43 = ___
Show answer
Answer: 68
- Operand1
- 25
- Operand2
- 43
- Operator
- +
39 + 40 = ___
Show answer
Answer: 79
- Operand1
- 39
- Operand2
- 40
- Operator
- +
11 + 74 = ___
Show answer
Answer: 85
- Operand1
- 11
- Operand2
- 74
- Operator
- +
15 + 63 = ___
Show answer
Answer: 78
- Operand1
- 15
- Operand2
- 63
- Operator
- +
70 + 22 = ___
Show answer
Answer: 92
- Operand1
- 70
- Operand2
- 22
- Operator
- +
40 + 25 = ___
Show answer
Answer: 65
- Operand1
- 40
- Operand2
- 25
- Operator
- +
Teaching Notes
Download this free addition missing addends to 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 missing addends to 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 Addition Missing Addends To 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.