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) 418 + 750 =

2) 518 + 137 =

3) 694 + 642 =

4) 396 + 536 =

5) 297 + 524 =

6) 998 + 425 =

7) 157 + 495 =

8) 820 + 781 =

9) 771 + 532 =

10) 658 + 879 =

11) 973 + 694 =

12) 662 + 811 =

13) 529 + 731 =

14) 442 + 428 =

15) 776 + 306 =

16) 752 + 143 =

17) 451 + 356 =

18) 511 + 614 =

19) 164 + 209 =

20) 252 + 781 =

21) 520 + 464 =

22) 697 + 253 =

23) 948 + 448 =

24) 101 + 590 =

25) 365 + 828 =

26) 526 + 910 =

27) 482 + 748 =

28) 435 + 263 =

29) 348 + 560 =

30) 749 + 242 =

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.