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) 677 + 428 =

2) 673 + 614 =

3) 785 + 767 =

4) 345 + 667 =

5) 632 + 597 =

6) 938 + 107 =

7) 694 + 292 =

8) 812 + 180 =

9) 163 + 665 =

10) 947 + 814 =

11) 888 + 155 =

12) 782 + 215 =

13) 188 + 240 =

14) 820 + 462 =

15) 418 + 907 =

16) 531 + 659 =

17) 599 + 567 =

18) 162 + 370 =

19) 191 + 167 =

20) 485 + 299 =

21) 977 + 737 =

22) 614 + 828 =

23) 226 + 586 =

24) 711 + 905 =

25) 559 + 807 =

26) 266 + 721 =

27) 555 + 698 =

28) 246 + 157 =

29) 952 + 113 =

30) 343 + 643 =

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.