Workbook Detail
Addition Within 100 Starter — Set 79
17 + 20 = ___
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Answer: 37
- Operand1
- 17
- Operand2
- 20
- Operator
- +
45 + 12 = ___
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Answer: 57
- Operand1
- 45
- Operand2
- 12
- Operator
- +
12 + 2 = ___
Show answer
Answer: 14
- Operand1
- 12
- Operand2
- 2
- Operator
- +
41 + 40 = ___
Show answer
Answer: 81
- Operand1
- 41
- Operand2
- 40
- Operator
- +
21 + 74 = ___
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Answer: 95
- Operand1
- 21
- Operand2
- 74
- Operator
- +
35 + 54 = ___
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Answer: 89
- Operand1
- 35
- Operand2
- 54
- Operator
- +
24 + 15 = ___
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Answer: 39
- Operand1
- 24
- Operand2
- 15
- Operator
- +
10 + 85 = ___
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Answer: 95
- Operand1
- 10
- Operand2
- 85
- Operator
- +
45 + 40 = ___
Show answer
Answer: 85
- Operand1
- 45
- Operand2
- 40
- Operator
- +
2 + 76 = ___
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Answer: 78
- Operand1
- 2
- Operand2
- 76
- Operator
- +
43 + 36 = ___
Show answer
Answer: 79
- Operand1
- 43
- Operand2
- 36
- Operator
- +
35 + 64 = ___
Show answer
Answer: 99
- Operand1
- 35
- Operand2
- 64
- Operator
- +
22 + 60 = ___
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Answer: 82
- Operand1
- 22
- Operand2
- 60
- Operator
- +
4 + 35 = ___
Show answer
Answer: 39
- Operand1
- 4
- Operand2
- 35
- Operator
- +
22 + 40 = ___
Show answer
Answer: 62
- Operand1
- 22
- Operand2
- 40
- Operator
- +
45 + 32 = ___
Show answer
Answer: 77
- Operand1
- 45
- Operand2
- 32
- Operator
- +
47 + 51 = ___
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Answer: 98
- Operand1
- 47
- Operand2
- 51
- Operator
- +
38 + 30 = ___
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Answer: 68
- Operand1
- 38
- Operand2
- 30
- Operator
- +
20 + 5 = ___
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Answer: 25
- Operand1
- 20
- Operand2
- 5
- Operator
- +
5 + 84 = ___
Show answer
Answer: 89
- Operand1
- 5
- Operand2
- 84
- Operator
- +
Teaching Notes
Practice addition within 100 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Addition Within 100 Starter Worksheets 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.