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) 291 + 289 =

2) 832 + 305 =

3) 157 + 301 =

4) 413 + 177 =

5) 566 + 295 =

6) 199 + 388 =

7) 913 + 715 =

8) 687 + 292 =

9) 695 + 133 =

10) 727 + 426 =

11) 541 + 763 =

12) 424 + 666 =

13) 882 + 384 =

14) 447 + 781 =

15) 619 + 997 =

16) 289 + 919 =

17) 334 + 783 =

18) 916 + 521 =

19) 229 + 231 =

20) 471 + 957 =

21) 349 + 692 =

22) 761 + 140 =

23) 452 + 744 =

24) 353 + 519 =

25) 524 + 854 =

26) 896 + 308 =

27) 339 + 392 =

28) 172 + 485 =

29) 154 + 611 =

30) 130 + 187 =

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.