Workbook Detail
Addition Special Types Missing Addend — Set 91
11 + 20 = ___
Show answer
Answer: 31
- Operand1
- 11
- Operand2
- 20
- Operator
- +
67 + 21 = ___
Show answer
Answer: 88
- Operand1
- 67
- Operand2
- 21
- Operator
- +
51 + 14 = ___
Show answer
Answer: 65
- Operand1
- 51
- Operand2
- 14
- Operator
- +
13 + 21 = ___
Show answer
Answer: 34
- Operand1
- 13
- Operand2
- 21
- Operator
- +
16 + 51 = ___
Show answer
Answer: 67
- Operand1
- 16
- Operand2
- 51
- Operator
- +
60 + 19 = ___
Show answer
Answer: 79
- Operand1
- 60
- Operand2
- 19
- Operator
- +
10 + 54 = ___
Show answer
Answer: 64
- Operand1
- 10
- Operand2
- 54
- Operator
- +
56 + 30 = ___
Show answer
Answer: 86
- Operand1
- 56
- Operand2
- 30
- Operator
- +
32 + 61 = ___
Show answer
Answer: 93
- Operand1
- 32
- Operand2
- 61
- Operator
- +
35 + 24 = ___
Show answer
Answer: 59
- Operand1
- 35
- Operand2
- 24
- Operator
- +
42 + 57 = ___
Show answer
Answer: 99
- Operand1
- 42
- Operand2
- 57
- Operator
- +
37 + 32 = ___
Show answer
Answer: 69
- Operand1
- 37
- Operand2
- 32
- Operator
- +
21 + 36 = ___
Show answer
Answer: 57
- Operand1
- 21
- Operand2
- 36
- Operator
- +
60 + 18 = ___
Show answer
Answer: 78
- Operand1
- 60
- Operand2
- 18
- Operator
- +
27 + 41 = ___
Show answer
Answer: 68
- Operand1
- 27
- Operand2
- 41
- Operator
- +
81 + 18 = ___
Show answer
Answer: 99
- Operand1
- 81
- Operand2
- 18
- Operator
- +
20 + 66 = ___
Show answer
Answer: 86
- Operand1
- 20
- Operand2
- 66
- Operator
- +
63 + 16 = ___
Show answer
Answer: 79
- Operand1
- 63
- Operand2
- 16
- Operator
- +
13 + 13 = ___
Show answer
Answer: 26
- Operand1
- 13
- Operand2
- 13
- Operator
- +
25 + 32 = ___
Show answer
Answer: 57
- Operand1
- 25
- Operand2
- 32
- 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.