Workbook Detail
Addition Addition Three Digit — Set 43
220 + 401 = ___
Show answer
Answer: 621
- Operand1
- 220
- Operand2
- 401
- Operator
- +
605 + 274 = ___
Show answer
Answer: 879
- Operand1
- 605
- Operand2
- 274
- Operator
- +
220 + 513 = ___
Show answer
Answer: 733
- Operand1
- 220
- Operand2
- 513
- Operator
- +
443 + 220 = ___
Show answer
Answer: 663
- Operand1
- 443
- Operand2
- 220
- Operator
- +
542 + 355 = ___
Show answer
Answer: 897
- Operand1
- 542
- Operand2
- 355
- Operator
- +
722 + 143 = ___
Show answer
Answer: 865
- Operand1
- 722
- Operand2
- 143
- Operator
- +
170 + 702 = ___
Show answer
Answer: 872
- Operand1
- 170
- Operand2
- 702
- Operator
- +
114 + 553 = ___
Show answer
Answer: 667
- Operand1
- 114
- Operand2
- 553
- Operator
- +
727 + 160 = ___
Show answer
Answer: 887
- Operand1
- 727
- Operand2
- 160
- Operator
- +
831 + 101 = ___
Show answer
Answer: 932
- Operand1
- 831
- Operand2
- 101
- Operator
- +
669 + 330 = ___
Show answer
Answer: 999
- Operand1
- 669
- Operand2
- 330
- Operator
- +
315 + 424 = ___
Show answer
Answer: 739
- Operand1
- 315
- Operand2
- 424
- Operator
- +
242 + 237 = ___
Show answer
Answer: 479
- Operand1
- 242
- Operand2
- 237
- Operator
- +
615 + 352 = ___
Show answer
Answer: 967
- Operand1
- 615
- Operand2
- 352
- Operator
- +
137 + 401 = ___
Show answer
Answer: 538
- Operand1
- 137
- Operand2
- 401
- Operator
- +
653 + 310 = ___
Show answer
Answer: 963
- Operand1
- 653
- Operand2
- 310
- Operator
- +
146 + 351 = ___
Show answer
Answer: 497
- Operand1
- 146
- Operand2
- 351
- Operator
- +
201 + 760 = ___
Show answer
Answer: 961
- Operand1
- 201
- Operand2
- 760
- Operator
- +
300 + 281 = ___
Show answer
Answer: 581
- Operand1
- 300
- Operand2
- 281
- Operator
- +
821 + 117 = ___
Show answer
Answer: 938
- Operand1
- 821
- Operand2
- 117
- 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.