Workbook Detail
Addition Addition Three Digit — Set 57
290 + 601 = ___
Show answer
Answer: 891
- Operand1
- 290
- Operand2
- 601
- Operator
- +
633 + 145 = ___
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Answer: 778
- Operand1
- 633
- Operand2
- 145
- Operator
- +
720 + 261 = ___
Show answer
Answer: 981
- Operand1
- 720
- Operand2
- 261
- Operator
- +
347 + 522 = ___
Show answer
Answer: 869
- Operand1
- 347
- Operand2
- 522
- Operator
- +
712 + 121 = ___
Show answer
Answer: 833
- Operand1
- 712
- Operand2
- 121
- Operator
- +
745 + 124 = ___
Show answer
Answer: 869
- Operand1
- 745
- Operand2
- 124
- Operator
- +
310 + 572 = ___
Show answer
Answer: 882
- Operand1
- 310
- Operand2
- 572
- Operator
- +
350 + 440 = ___
Show answer
Answer: 790
- Operand1
- 350
- Operand2
- 440
- Operator
- +
641 + 247 = ___
Show answer
Answer: 888
- Operand1
- 641
- Operand2
- 247
- Operator
- +
461 + 222 = ___
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Answer: 683
- Operand1
- 461
- Operand2
- 222
- Operator
- +
315 + 203 = ___
Show answer
Answer: 518
- Operand1
- 315
- Operand2
- 203
- Operator
- +
150 + 238 = ___
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Answer: 388
- Operand1
- 150
- Operand2
- 238
- Operator
- +
191 + 303 = ___
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Answer: 494
- Operand1
- 191
- Operand2
- 303
- Operator
- +
564 + 435 = ___
Show answer
Answer: 999
- Operand1
- 564
- Operand2
- 435
- Operator
- +
320 + 354 = ___
Show answer
Answer: 674
- Operand1
- 320
- Operand2
- 354
- Operator
- +
785 + 110 = ___
Show answer
Answer: 895
- Operand1
- 785
- Operand2
- 110
- Operator
- +
400 + 526 = ___
Show answer
Answer: 926
- Operand1
- 400
- Operand2
- 526
- Operator
- +
202 + 110 = ___
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Answer: 312
- Operand1
- 202
- Operand2
- 110
- Operator
- +
253 + 735 = ___
Show answer
Answer: 988
- Operand1
- 253
- Operand2
- 735
- Operator
- +
245 + 533 = ___
Show answer
Answer: 778
- Operand1
- 245
- Operand2
- 533
- 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.