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) 559 + 533 =

2) 370 + 241 =

3) 369 + 607 =

4) 179 + 649 =

5) 939 + 311 =

6) 656 + 832 =

7) 483 + 492 =

8) 713 + 476 =

9) 829 + 603 =

10) 681 + 897 =

11) 908 + 135 =

12) 979 + 925 =

13) 422 + 467 =

14) 894 + 712 =

15) 688 + 929 =

16) 335 + 287 =

17) 121 + 233 =

18) 103 + 703 =

19) 245 + 753 =

20) 111 + 479 =

21) 821 + 932 =

22) 839 + 793 =

23) 113 + 684 =

24) 312 + 197 =

25) 329 + 537 =

26) 232 + 181 =

27) 925 + 164 =

28) 374 + 516 =

29) 577 + 421 =

30) 126 + 730 =

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.