Addition Number Line Number Line To 100 — Set 12
40 + 28 = ___
Show answer
Answer: 68
- Operand1
- 40
- Operand2
- 28
- Operator
- +
35 + 11 = ___
Show answer
Answer: 46
- Operand1
- 35
- Operand2
- 11
- Operator
- +
33 + 63 = ___
Show answer
Answer: 96
- Operand1
- 33
- Operand2
- 63
- Operator
- +
21 + 77 = ___
Show answer
Answer: 98
- Operand1
- 21
- Operand2
- 77
- Operator
- +
16 + 23 = ___
Show answer
Answer: 39
- Operand1
- 16
- Operand2
- 23
- Operator
- +
32 + 24 = ___
Show answer
Answer: 56
- Operand1
- 32
- Operand2
- 24
- Operator
- +
20 + 68 = ___
Show answer
Answer: 88
- Operand1
- 20
- Operand2
- 68
- Operator
- +
39 + 60 = ___
Show answer
Answer: 99
- Operand1
- 39
- Operand2
- 60
- Operator
- +
12 + 74 = ___
Show answer
Answer: 86
- Operand1
- 12
- Operand2
- 74
- Operator
- +
31 + 3 = ___
Show answer
Answer: 34
- Operand1
- 31
- Operand2
- 3
- Operator
- +
29 + 20 = ___
Show answer
Answer: 49
- Operand1
- 29
- Operand2
- 20
- Operator
- +
21 + 11 = ___
Show answer
Answer: 32
- Operand1
- 21
- Operand2
- 11
- Operator
- +
40 + 42 = ___
Show answer
Answer: 82
- Operand1
- 40
- Operand2
- 42
- Operator
- +
31 + 26 = ___
Show answer
Answer: 57
- Operand1
- 31
- Operand2
- 26
- Operator
- +
32 + 26 = ___
Show answer
Answer: 58
- Operand1
- 32
- Operand2
- 26
- Operator
- +
1 + 40 = ___
Show answer
Answer: 41
- Operand1
- 1
- Operand2
- 40
- Operator
- +
6 + 62 = ___
Show answer
Answer: 68
- Operand1
- 6
- Operand2
- 62
- Operator
- +
3 + 45 = ___
Show answer
Answer: 48
- Operand1
- 3
- Operand2
- 45
- Operator
- +
23 + 63 = ___
Show answer
Answer: 86
- Operand1
- 23
- Operand2
- 63
- Operator
- +
10 + 50 = ___
Show answer
Answer: 60
- Operand1
- 10
- Operand2
- 50
- 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.