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) 583 + 656 =

2) 175 + 904 =

3) 279 + 688 =

4) 246 + 343 =

5) 373 + 859 =

6) 811 + 258 =

7) 649 + 725 =

8) 631 + 788 =

9) 820 + 238 =

10) 736 + 169 =

11) 260 + 365 =

12) 986 + 438 =

13) 505 + 982 =

14) 677 + 991 =

15) 947 + 284 =

16) 413 + 386 =

17) 669 + 333 =

18) 493 + 493 =

19) 460 + 278 =

20) 720 + 757 =

21) 816 + 679 =

22) 576 + 949 =

23) 188 + 843 =

24) 572 + 223 =

25) 824 + 870 =

26) 855 + 313 =

27) 984 + 748 =

28) 417 + 968 =

29) 474 + 961 =

30) 558 + 656 =

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.