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) 239 + 354 =

2) 473 + 179 =

3) 957 + 770 =

4) 889 + 648 =

5) 976 + 735 =

6) 116 + 316 =

7) 116 + 709 =

8) 778 + 522 =

9) 362 + 586 =

10) 995 + 659 =

11) 201 + 720 =

12) 525 + 789 =

13) 290 + 542 =

14) 594 + 281 =

15) 983 + 442 =

16) 153 + 659 =

17) 749 + 914 =

18) 349 + 506 =

19) 824 + 237 =

20) 399 + 396 =

21) 203 + 819 =

22) 624 + 614 =

23) 684 + 903 =

24) 435 + 899 =

25) 197 + 956 =

26) 769 + 449 =

27) 426 + 790 =

28) 265 + 878 =

29) 413 + 485 =

30) 293 + 746 =

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.