Addition Number Line Number Line To 100 — Set 21
34 + 51 = ___
Show answer
Answer: 85
- Operand1
- 34
- Operand2
- 51
- Operator
- +
1 + 23 = ___
Show answer
Answer: 24
- Operand1
- 1
- Operand2
- 23
- Operator
- +
1 + 52 = ___
Show answer
Answer: 53
- Operand1
- 1
- Operand2
- 52
- Operator
- +
15 + 63 = ___
Show answer
Answer: 78
- Operand1
- 15
- Operand2
- 63
- Operator
- +
21 + 21 = ___
Show answer
Answer: 42
- Operand1
- 21
- Operand2
- 21
- Operator
- +
17 + 61 = ___
Show answer
Answer: 78
- Operand1
- 17
- Operand2
- 61
- Operator
- +
48 + 30 = ___
Show answer
Answer: 78
- Operand1
- 48
- Operand2
- 30
- Operator
- +
6 + 53 = ___
Show answer
Answer: 59
- Operand1
- 6
- Operand2
- 53
- Operator
- +
43 + 4 = ___
Show answer
Answer: 47
- Operand1
- 43
- Operand2
- 4
- Operator
- +
19 + 30 = ___
Show answer
Answer: 49
- Operand1
- 19
- Operand2
- 30
- Operator
- +
23 + 25 = ___
Show answer
Answer: 48
- Operand1
- 23
- Operand2
- 25
- Operator
- +
10 + 65 = ___
Show answer
Answer: 75
- Operand1
- 10
- Operand2
- 65
- Operator
- +
11 + 4 = ___
Show answer
Answer: 15
- Operand1
- 11
- Operand2
- 4
- Operator
- +
11 + 71 = ___
Show answer
Answer: 82
- Operand1
- 11
- Operand2
- 71
- Operator
- +
21 + 23 = ___
Show answer
Answer: 44
- Operand1
- 21
- Operand2
- 23
- Operator
- +
7 + 82 = ___
Show answer
Answer: 89
- Operand1
- 7
- Operand2
- 82
- Operator
- +
45 + 14 = ___
Show answer
Answer: 59
- Operand1
- 45
- Operand2
- 14
- Operator
- +
30 + 40 = ___
Show answer
Answer: 70
- Operand1
- 30
- Operand2
- 40
- Operator
- +
3 + 86 = ___
Show answer
Answer: 89
- Operand1
- 3
- Operand2
- 86
- Operator
- +
8 + 31 = ___
Show answer
Answer: 39
- Operand1
- 8
- Operand2
- 31
- Operator
- +
Teaching Notes
Browse free addition worksheets. Each set includes an answer key and covers key skills aligned with Common Core standards.
Features
- Printable PDF format
- Answer key included
- Multiple difficulty levels
- Classroom and home friendly
How to Use These Worksheets
- Select a addition 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
What math skills are covered in these Addition Worksheets?
These worksheets cover addition worksheets skills aligned with Common Core standards for K-3 students. Each set builds procedural fluency and conceptual understanding through varied problem formats.
Are these worksheets free to print?
Yes — all worksheets are completely free with no signup required. Click Print for a clean printout optimized for US Letter paper. PDF download is also available.
What grade level are these addition worksheets for?
These worksheets are designed for Kindergarten through Grade 3 students. Topics match Common Core expectations for each grade level.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen to check student work quickly.
Can I use these for homeschool?
Absolutely. These worksheets are widely used by homeschool families for structured math practice. The set-number system lets you assign specific worksheets and track progress.