Workbook Detail
Addition Addition Three Digit — Set 1
Exercise 1
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Answer: 1468
- Operand1
- 498
- Operand2
- 970
- Operator
- +
Exercise 2
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Answer: 1655
- Operand1
- 828
- Operand2
- 827
- Operator
- +
Exercise 3
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Answer: 1341
- Operand1
- 345
- Operand2
- 996
- Operator
- +
Exercise 4
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Answer: 1033
- Operand1
- 895
- Operand2
- 138
- Operator
- +
Exercise 5
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Answer: 1440
- Operand1
- 956
- Operand2
- 484
- Operator
- +
Exercise 6
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Answer: 1042
- Operand1
- 551
- Operand2
- 491
- Operator
- +
Exercise 7
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Answer: 1392
- Operand1
- 627
- Operand2
- 765
- Operator
- +
Exercise 8
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Answer: 598
- Operand1
- 469
- Operand2
- 129
- Operator
- +
Exercise 9
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Answer: 1291
- Operand1
- 449
- Operand2
- 842
- Operator
- +
Exercise 10
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Answer: 1130
- Operand1
- 482
- Operand2
- 648
- Operator
- +
Exercise 11
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Answer: 1200
- Operand1
- 970
- Operand2
- 230
- Operator
- +
Exercise 12
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Answer: 966
- Operand1
- 276
- Operand2
- 690
- Operator
- +
Exercise 13
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Answer: 1516
- Operand1
- 717
- Operand2
- 799
- Operator
- +
Exercise 14
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Answer: 1303
- Operand1
- 652
- Operand2
- 651
- Operator
- +
Exercise 15
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Answer: 1042
- Operand1
- 371
- Operand2
- 671
- Operator
- +
Exercise 16
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Answer: 1276
- Operand1
- 976
- Operand2
- 300
- Operator
- +
Exercise 17
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Answer: 1459
- Operand1
- 982
- Operand2
- 477
- Operator
- +
Exercise 18
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Answer: 1481
- Operand1
- 951
- Operand2
- 530
- Operator
- +
Exercise 19
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Answer: 1303
- Operand1
- 711
- Operand2
- 592
- Operator
- +
Exercise 20
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Answer: 869
- Operand1
- 592
- Operand2
- 277
- Operator
- +
Teaching Notes
Download this free addition three digit 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 three digit 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 Three Digit 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.