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) 126 + 588 =

2) 202 + 287 =

3) 472 + 576 =

4) 272 + 401 =

5) 169 + 688 =

6) 915 + 691 =

7) 156 + 196 =

8) 286 + 265 =

9) 962 + 574 =

10) 674 + 467 =

11) 662 + 505 =

12) 466 + 939 =

13) 131 + 388 =

14) 447 + 485 =

15) 286 + 934 =

16) 615 + 578 =

17) 674 + 864 =

18) 538 + 568 =

19) 688 + 221 =

20) 389 + 965 =

21) 164 + 885 =

22) 894 + 736 =

23) 982 + 108 =

24) 119 + 456 =

25) 282 + 839 =

26) 859 + 819 =

27) 824 + 558 =

28) 288 + 343 =

29) 654 + 413 =

30) 915 + 662 =

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.