Workbook Detail
Addition Addition Three Digit — Set 31
147 + 842 = ___
Show answer
Answer: 989
- Operand1
- 147
- Operand2
- 842
- Operator
- +
538 + 250 = ___
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Answer: 788
- Operand1
- 538
- Operand2
- 250
- Operator
- +
601 + 302 = ___
Show answer
Answer: 903
- Operand1
- 601
- Operand2
- 302
- Operator
- +
643 + 310 = ___
Show answer
Answer: 953
- Operand1
- 643
- Operand2
- 310
- Operator
- +
605 + 194 = ___
Show answer
Answer: 799
- Operand1
- 605
- Operand2
- 194
- Operator
- +
322 + 166 = ___
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Answer: 488
- Operand1
- 322
- Operand2
- 166
- Operator
- +
114 + 280 = ___
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Answer: 394
- Operand1
- 114
- Operand2
- 280
- Operator
- +
415 + 512 = ___
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Answer: 927
- Operand1
- 415
- Operand2
- 512
- Operator
- +
414 + 343 = ___
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Answer: 757
- Operand1
- 414
- Operand2
- 343
- Operator
- +
132 + 127 = ___
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Answer: 259
- Operand1
- 132
- Operand2
- 127
- Operator
- +
541 + 404 = ___
Show answer
Answer: 945
- Operand1
- 541
- Operand2
- 404
- Operator
- +
802 + 102 = ___
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Answer: 904
- Operand1
- 802
- Operand2
- 102
- Operator
- +
410 + 104 = ___
Show answer
Answer: 514
- Operand1
- 410
- Operand2
- 104
- Operator
- +
501 + 393 = ___
Show answer
Answer: 894
- Operand1
- 501
- Operand2
- 393
- Operator
- +
302 + 391 = ___
Show answer
Answer: 693
- Operand1
- 302
- Operand2
- 391
- Operator
- +
401 + 588 = ___
Show answer
Answer: 989
- Operand1
- 401
- Operand2
- 588
- Operator
- +
701 + 202 = ___
Show answer
Answer: 903
- Operand1
- 701
- Operand2
- 202
- Operator
- +
210 + 539 = ___
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Answer: 749
- Operand1
- 210
- Operand2
- 539
- Operator
- +
233 + 163 = ___
Show answer
Answer: 396
- Operand1
- 233
- Operand2
- 163
- Operator
- +
117 + 140 = ___
Show answer
Answer: 257
- Operand1
- 117
- Operand2
- 140
- 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.