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) 756 + 512 =

2) 395 + 436 =

3) 934 + 239 =

4) 272 + 910 =

5) 326 + 578 =

6) 237 + 225 =

7) 335 + 509 =

8) 623 + 546 =

9) 483 + 268 =

10) 882 + 157 =

11) 235 + 886 =

12) 620 + 790 =

13) 206 + 294 =

14) 515 + 697 =

15) 837 + 570 =

16) 903 + 797 =

17) 828 + 477 =

18) 345 + 534 =

19) 768 + 422 =

20) 341 + 148 =

21) 443 + 637 =

22) 983 + 684 =

23) 852 + 476 =

24) 623 + 875 =

25) 450 + 786 =

26) 584 + 565 =

27) 536 + 298 =

28) 976 + 375 =

29) 193 + 590 =

30) 189 + 277 =

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.