Workbook Detail
Addition Addition Three Digit — Set 51
425 + 513 = ___
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Answer: 938
- Operand1
- 425
- Operand2
- 513
- Operator
- +
153 + 513 = ___
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Answer: 666
- Operand1
- 153
- Operand2
- 513
- Operator
- +
308 + 591 = ___
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Answer: 899
- Operand1
- 308
- Operand2
- 591
- Operator
- +
384 + 313 = ___
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Answer: 697
- Operand1
- 384
- Operand2
- 313
- Operator
- +
131 + 432 = ___
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Answer: 563
- Operand1
- 131
- Operand2
- 432
- Operator
- +
500 + 384 = ___
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Answer: 884
- Operand1
- 500
- Operand2
- 384
- Operator
- +
778 + 211 = ___
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Answer: 989
- Operand1
- 778
- Operand2
- 211
- Operator
- +
626 + 333 = ___
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Answer: 959
- Operand1
- 626
- Operand2
- 333
- Operator
- +
120 + 502 = ___
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Answer: 622
- Operand1
- 120
- Operand2
- 502
- Operator
- +
811 + 163 = ___
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Answer: 974
- Operand1
- 811
- Operand2
- 163
- Operator
- +
122 + 656 = ___
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Answer: 778
- Operand1
- 122
- Operand2
- 656
- Operator
- +
122 + 162 = ___
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Answer: 284
- Operand1
- 122
- Operand2
- 162
- Operator
- +
172 + 121 = ___
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Answer: 293
- Operand1
- 172
- Operand2
- 121
- Operator
- +
326 + 332 = ___
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Answer: 658
- Operand1
- 326
- Operand2
- 332
- Operator
- +
210 + 259 = ___
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Answer: 469
- Operand1
- 210
- Operand2
- 259
- Operator
- +
134 + 240 = ___
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Answer: 374
- Operand1
- 134
- Operand2
- 240
- Operator
- +
250 + 522 = ___
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Answer: 772
- Operand1
- 250
- Operand2
- 522
- Operator
- +
474 + 113 = ___
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Answer: 587
- Operand1
- 474
- Operand2
- 113
- Operator
- +
300 + 446 = ___
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Answer: 746
- Operand1
- 300
- Operand2
- 446
- Operator
- +
850 + 143 = ___
Show answer
Answer: 993
- Operand1
- 850
- Operand2
- 143
- 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.