Workbook Detail
Addition Special Types Missing Addend — Set 40
29 + 50 = ___
Show answer
Answer: 79
- Operand1
- 29
- Operand2
- 50
- Operator
- +
13 + 66 = ___
Show answer
Answer: 79
- Operand1
- 13
- Operand2
- 66
- Operator
- +
51 + 30 = ___
Show answer
Answer: 81
- Operand1
- 51
- Operand2
- 30
- Operator
- +
35 + 31 = ___
Show answer
Answer: 66
- Operand1
- 35
- Operand2
- 31
- Operator
- +
53 + 44 = ___
Show answer
Answer: 97
- Operand1
- 53
- Operand2
- 44
- Operator
- +
68 + 11 = ___
Show answer
Answer: 79
- Operand1
- 68
- Operand2
- 11
- Operator
- +
50 + 45 = ___
Show answer
Answer: 95
- Operand1
- 50
- Operand2
- 45
- Operator
- +
80 + 15 = ___
Show answer
Answer: 95
- Operand1
- 80
- Operand2
- 15
- Operator
- +
23 + 54 = ___
Show answer
Answer: 77
- Operand1
- 23
- Operand2
- 54
- Operator
- +
46 + 52 = ___
Show answer
Answer: 98
- Operand1
- 46
- Operand2
- 52
- Operator
- +
70 + 21 = ___
Show answer
Answer: 91
- Operand1
- 70
- Operand2
- 21
- Operator
- +
21 + 46 = ___
Show answer
Answer: 67
- Operand1
- 21
- Operand2
- 46
- Operator
- +
11 + 10 = ___
Show answer
Answer: 21
- Operand1
- 11
- Operand2
- 10
- Operator
- +
42 + 55 = ___
Show answer
Answer: 97
- Operand1
- 42
- Operand2
- 55
- Operator
- +
43 + 46 = ___
Show answer
Answer: 89
- Operand1
- 43
- Operand2
- 46
- Operator
- +
11 + 16 = ___
Show answer
Answer: 27
- Operand1
- 11
- Operand2
- 16
- Operator
- +
81 + 16 = ___
Show answer
Answer: 97
- Operand1
- 81
- Operand2
- 16
- Operator
- +
41 + 33 = ___
Show answer
Answer: 74
- Operand1
- 41
- Operand2
- 33
- Operator
- +
43 + 21 = ___
Show answer
Answer: 64
- Operand1
- 43
- Operand2
- 21
- Operator
- +
41 + 13 = ___
Show answer
Answer: 54
- Operand1
- 41
- Operand2
- 13
- 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.