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) 541 + 220 =

2) 251 + 347 =

3) 860 + 599 =

4) 422 + 584 =

5) 185 + 129 =

6) 190 + 668 =

7) 551 + 600 =

8) 374 + 393 =

9) 696 + 350 =

10) 186 + 719 =

11) 871 + 754 =

12) 622 + 375 =

13) 819 + 169 =

14) 761 + 899 =

15) 965 + 915 =

16) 598 + 501 =

17) 168 + 114 =

18) 780 + 363 =

19) 869 + 722 =

20) 477 + 855 =

21) 522 + 412 =

22) 801 + 568 =

23) 924 + 565 =

24) 482 + 582 =

25) 528 + 525 =

26) 261 + 627 =

27) 357 + 358 =

28) 862 + 736 =

29) 682 + 876 =

30) 678 + 345 =

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.