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 + 423 =

2) 960 + 129 =

3) 896 + 482 =

4) 638 + 458 =

5) 368 + 229 =

6) 598 + 424 =

7) 550 + 615 =

8) 641 + 283 =

9) 786 + 365 =

10) 358 + 369 =

11) 789 + 468 =

12) 908 + 944 =

13) 383 + 744 =

14) 913 + 272 =

15) 226 + 999 =

16) 677 + 669 =

17) 784 + 348 =

18) 255 + 473 =

19) 135 + 972 =

20) 347 + 355 =

21) 245 + 691 =

22) 983 + 107 =

23) 779 + 917 =

24) 676 + 701 =

25) 159 + 411 =

26) 377 + 749 =

27) 360 + 449 =

28) 437 + 696 =

29) 812 + 467 =

30) 760 + 799 =

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.