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) 845 + 569 =

2) 463 + 329 =

3) 786 + 496 =

4) 359 + 763 =

5) 548 + 995 =

6) 823 + 699 =

7) 309 + 101 =

8) 273 + 640 =

9) 725 + 977 =

10) 419 + 278 =

11) 482 + 746 =

12) 641 + 499 =

13) 575 + 293 =

14) 590 + 706 =

15) 799 + 741 =

16) 284 + 629 =

17) 418 + 990 =

18) 401 + 435 =

19) 531 + 672 =

20) 101 + 482 =

21) 901 + 465 =

22) 694 + 351 =

23) 824 + 230 =

24) 797 + 582 =

25) 370 + 119 =

26) 190 + 698 =

27) 205 + 644 =

28) 497 + 562 =

29) 661 + 401 =

30) 778 + 455 =

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.