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) 564 + 248 =

2) 892 + 515 =

3) 353 + 181 =

4) 382 + 383 =

5) 629 + 665 =

6) 963 + 173 =

7) 821 + 295 =

8) 271 + 540 =

9) 151 + 859 =

10) 242 + 601 =

11) 854 + 264 =

12) 317 + 414 =

13) 655 + 292 =

14) 746 + 792 =

15) 672 + 194 =

16) 156 + 508 =

17) 108 + 407 =

18) 885 + 220 =

19) 735 + 366 =

20) 434 + 491 =

21) 356 + 603 =

22) 776 + 242 =

23) 644 + 800 =

24) 743 + 176 =

25) 749 + 212 =

26) 871 + 779 =

27) 387 + 879 =

28) 137 + 893 =

29) 296 + 749 =

30) 142 + 244 =

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.