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) 866 + 194 =

2) 197 + 316 =

3) 575 + 936 =

4) 527 + 981 =

5) 425 + 488 =

6) 897 + 503 =

7) 381 + 270 =

8) 542 + 764 =

9) 597 + 157 =

10) 119 + 656 =

11) 342 + 230 =

12) 557 + 797 =

13) 477 + 930 =

14) 152 + 556 =

15) 999 + 742 =

16) 442 + 482 =

17) 988 + 624 =

18) 149 + 214 =

19) 153 + 920 =

20) 976 + 447 =

21) 527 + 575 =

22) 890 + 653 =

23) 167 + 935 =

24) 284 + 510 =

25) 975 + 556 =

26) 359 + 823 =

27) 135 + 684 =

28) 895 + 389 =

29) 962 + 283 =

30) 479 + 542 =

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.