Advanced 3-Digit Addition – Free Math Exercises

Ready for big numbers? Our 3-digit addition worksheets strengthen mental math and problem-solving. Great for students aiming for excellence!

1) 331 + 816 =

2) 872 + 720 =

3) 587 + 955 =

4) 963 + 737 =

5) 101 + 794 =

6) 873 + 238 =

7) 568 + 438 =

8) 617 + 636 =

9) 692 + 156 =

10) 786 + 396 =

11) 610 + 635 =

12) 229 + 967 =

13) 914 + 547 =

14) 583 + 886 =

15) 782 + 706 =

16) 241 + 503 =

17) 738 + 613 =

18) 665 + 336 =

19) 654 + 436 =

20) 536 + 274 =

21) 808 + 226 =

22) 637 + 616 =

23) 900 + 876 =

24) 226 + 786 =

25) 537 + 880 =

26) 392 + 542 =

27) 514 + 969 =

28) 156 + 253 =

29) 201 + 519 =

30) 324 + 510 =

To view the results click on the "Show results" button.
To print the exercise sheet click on the "Print" button.
To generate a new exercise sheet click on the "Generate new worksheet" button.

Find also

Master Addition – Free Math Practice Worksheets & Exercises

All Advanced 3-Digit Addition – Free Math Exercises and worksheets are completely free to use and reuse. These resources are designed to enhance math skills and mastery of Advanced 3-Digit Addition – Free Math Exercises concepts. Perfect for students, teachers, and parents, these free worksheets support effective learning and continuous practice in mathematics.