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) 904 + 490 =

2) 344 + 562 =

3) 193 + 152 =

4) 805 + 675 =

5) 614 + 959 =

6) 912 + 971 =

7) 357 + 797 =

8) 265 + 354 =

9) 679 + 571 =

10) 388 + 188 =

11) 243 + 927 =

12) 310 + 640 =

13) 861 + 527 =

14) 814 + 783 =

15) 625 + 469 =

16) 839 + 315 =

17) 418 + 412 =

18) 606 + 504 =

19) 968 + 543 =

20) 328 + 718 =

21) 828 + 917 =

22) 210 + 338 =

23) 377 + 811 =

24) 657 + 505 =

25) 261 + 767 =

26) 245 + 956 =

27) 658 + 384 =

28) 781 + 868 =

29) 945 + 965 =

30) 748 + 199 =

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.