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) 149 + 601 =

2) 565 + 685 =

3) 845 + 250 =

4) 391 + 745 =

5) 338 + 166 =

6) 558 + 894 =

7) 732 + 736 =

8) 854 + 503 =

9) 295 + 410 =

10) 109 + 702 =

11) 741 + 241 =

12) 571 + 272 =

13) 457 + 420 =

14) 194 + 906 =

15) 633 + 415 =

16) 952 + 109 =

17) 634 + 262 =

18) 108 + 525 =

19) 342 + 247 =

20) 766 + 445 =

21) 634 + 581 =

22) 535 + 424 =

23) 726 + 945 =

24) 444 + 468 =

25) 494 + 704 =

26) 447 + 143 =

27) 434 + 802 =

28) 832 + 162 =

29) 685 + 896 =

30) 913 + 840 =

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.