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) 813 + 456 =

2) 290 + 114 =

3) 748 + 780 =

4) 739 + 447 =

5) 772 + 738 =

6) 605 + 355 =

7) 518 + 834 =

8) 866 + 439 =

9) 996 + 983 =

10) 694 + 674 =

11) 606 + 746 =

12) 890 + 707 =

13) 881 + 380 =

14) 340 + 296 =

15) 523 + 806 =

16) 176 + 454 =

17) 826 + 637 =

18) 100 + 317 =

19) 599 + 734 =

20) 871 + 947 =

21) 815 + 751 =

22) 922 + 890 =

23) 121 + 827 =

24) 892 + 204 =

25) 713 + 746 =

26) 778 + 906 =

27) 701 + 714 =

28) 294 + 279 =

29) 609 + 548 =

30) 488 + 531 =

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.