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) 649 + 505 =

2) 604 + 483 =

3) 474 + 263 =

4) 716 + 934 =

5) 153 + 497 =

6) 100 + 423 =

7) 445 + 620 =

8) 262 + 669 =

9) 631 + 761 =

10) 601 + 356 =

11) 203 + 203 =

12) 361 + 478 =

13) 292 + 379 =

14) 847 + 657 =

15) 502 + 780 =

16) 895 + 521 =

17) 588 + 458 =

18) 383 + 459 =

19) 908 + 961 =

20) 263 + 626 =

21) 761 + 436 =

22) 997 + 240 =

23) 940 + 821 =

24) 884 + 415 =

25) 787 + 869 =

26) 439 + 193 =

27) 239 + 343 =

28) 428 + 242 =

29) 319 + 794 =

30) 330 + 170 =

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.