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) 932 + 285 =

2) 926 + 832 =

3) 400 + 682 =

4) 168 + 668 =

5) 578 + 236 =

6) 851 + 529 =

7) 256 + 245 =

8) 231 + 958 =

9) 247 + 767 =

10) 816 + 101 =

11) 274 + 590 =

12) 372 + 877 =

13) 518 + 143 =

14) 635 + 404 =

15) 400 + 517 =

16) 672 + 631 =

17) 707 + 765 =

18) 634 + 562 =

19) 669 + 711 =

20) 813 + 819 =

21) 635 + 596 =

22) 307 + 753 =

23) 353 + 951 =

24) 744 + 172 =

25) 776 + 568 =

26) 386 + 287 =

27) 649 + 349 =

28) 157 + 909 =

29) 831 + 101 =

30) 693 + 214 =

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.