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) 517 + 619 =

2) 614 + 493 =

3) 987 + 148 =

4) 835 + 832 =

5) 517 + 139 =

6) 377 + 727 =

7) 168 + 733 =

8) 280 + 603 =

9) 159 + 998 =

10) 243 + 242 =

11) 383 + 889 =

12) 534 + 888 =

13) 495 + 395 =

14) 718 + 974 =

15) 180 + 203 =

16) 942 + 236 =

17) 618 + 589 =

18) 315 + 308 =

19) 758 + 510 =

20) 371 + 754 =

21) 752 + 209 =

22) 450 + 190 =

23) 264 + 920 =

24) 454 + 180 =

25) 210 + 971 =

26) 211 + 155 =

27) 143 + 287 =

28) 468 + 654 =

29) 878 + 963 =

30) 198 + 694 =

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.