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) 922 + 396 =

2) 259 + 739 =

3) 527 + 770 =

4) 806 + 545 =

5) 234 + 670 =

6) 494 + 693 =

7) 405 + 343 =

8) 660 + 697 =

9) 868 + 407 =

10) 364 + 304 =

11) 701 + 903 =

12) 131 + 644 =

13) 130 + 751 =

14) 577 + 378 =

15) 747 + 702 =

16) 269 + 405 =

17) 350 + 362 =

18) 346 + 452 =

19) 950 + 631 =

20) 883 + 788 =

21) 806 + 318 =

22) 493 + 640 =

23) 963 + 550 =

24) 935 + 861 =

25) 784 + 695 =

26) 966 + 933 =

27) 660 + 691 =

28) 375 + 556 =

29) 234 + 121 =

30) 866 + 197 =

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.