Home › Grade 3 › Three-Digit Addition Three-Digit Addition Worksheet Three-digit addition with regrouping across place values — grade-3 NBT practice with workspace.
Three-Digit Addition Name ______________ Date ________
1. 186 + 470 2. 991 + 229 3. 318 + 936 4. 979 + 291 5. 879 + 773 6. 963 + 226 7. 205 + 670 8. 297 + 458 9. 774 + 964 10. 176 + 213 11. 186 + 553 12. 491 + 218 13. 215 + 986 14. 416 + 595 15. 720 + 915 16. 311 + 615 17. 664 + 695 18. 109 + 287 19. 179 + 383 20. 450 + 607
Print Show answer key 1. 186 + 470 656 2. 991 + 229 1220 3. 318 + 936 1254 4. 979 + 291 1270 5. 879 + 773 1652 6. 963 + 226 1189 7. 205 + 670 875 8. 297 + 458 755 9. 774 + 964 1738 10. 176 + 213 389 11. 186 + 553 739 12. 491 + 218 709 13. 215 + 986 1201 14. 416 + 595 1011 15. 720 + 915 1635 16. 311 + 615 926 17. 664 + 695 1359 18. 109 + 287 396 19. 179 + 383 562 20. 450 + 607 1057
Customize this sheet Teaching notes Expect regrouping to chain (ones→tens→hundreds) on about a third of these problems. A red pen on the carried digits, not the answer, is the fastest way to see who understands.
Common Core: 3.NBT.A.2
Common Core alignment © Copyright 2010. National Governors Association
Center for Best Practices and Council of Chief State School Officers. All
rights reserved.