Workbook Detail
Addition Addition Three Digit — Set 97
366 + 233 = ___
Show answer
Answer: 599
- Operand1
- 366
- Operand2
- 233
- Operator
- +
520 + 114 = ___
Show answer
Answer: 634
- Operand1
- 520
- Operand2
- 114
- Operator
- +
242 + 306 = ___
Show answer
Answer: 548
- Operand1
- 242
- Operand2
- 306
- Operator
- +
450 + 149 = ___
Show answer
Answer: 599
- Operand1
- 450
- Operand2
- 149
- Operator
- +
113 + 360 = ___
Show answer
Answer: 473
- Operand1
- 113
- Operand2
- 360
- Operator
- +
424 + 274 = ___
Show answer
Answer: 698
- Operand1
- 424
- Operand2
- 274
- Operator
- +
143 + 206 = ___
Show answer
Answer: 349
- Operand1
- 143
- Operand2
- 206
- Operator
- +
301 + 224 = ___
Show answer
Answer: 525
- Operand1
- 301
- Operand2
- 224
- Operator
- +
451 + 148 = ___
Show answer
Answer: 599
- Operand1
- 451
- Operand2
- 148
- Operator
- +
235 + 552 = ___
Show answer
Answer: 787
- Operand1
- 235
- Operand2
- 552
- Operator
- +
301 + 398 = ___
Show answer
Answer: 699
- Operand1
- 301
- Operand2
- 398
- Operator
- +
102 + 665 = ___
Show answer
Answer: 767
- Operand1
- 102
- Operand2
- 665
- Operator
- +
414 + 474 = ___
Show answer
Answer: 888
- Operand1
- 414
- Operand2
- 474
- Operator
- +
112 + 587 = ___
Show answer
Answer: 699
- Operand1
- 112
- Operand2
- 587
- Operator
- +
549 + 230 = ___
Show answer
Answer: 779
- Operand1
- 549
- Operand2
- 230
- Operator
- +
166 + 821 = ___
Show answer
Answer: 987
- Operand1
- 166
- Operand2
- 821
- Operator
- +
613 + 113 = ___
Show answer
Answer: 726
- Operand1
- 613
- Operand2
- 113
- Operator
- +
423 + 175 = ___
Show answer
Answer: 598
- Operand1
- 423
- Operand2
- 175
- Operator
- +
863 + 113 = ___
Show answer
Answer: 976
- Operand1
- 863
- Operand2
- 113
- Operator
- +
101 + 684 = ___
Show answer
Answer: 785
- Operand1
- 101
- Operand2
- 684
- 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.