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) 359 + 913 =

2) 826 + 109 =

3) 812 + 773 =

4) 659 + 722 =

5) 484 + 898 =

6) 401 + 611 =

7) 465 + 956 =

8) 374 + 276 =

9) 758 + 856 =

10) 352 + 478 =

11) 691 + 739 =

12) 132 + 363 =

13) 894 + 653 =

14) 749 + 133 =

15) 227 + 518 =

16) 710 + 673 =

17) 842 + 642 =

18) 653 + 105 =

19) 233 + 949 =

20) 430 + 430 =

21) 676 + 252 =

22) 579 + 652 =

23) 808 + 130 =

24) 674 + 880 =

25) 552 + 214 =

26) 233 + 101 =

27) 898 + 400 =

28) 982 + 788 =

29) 542 + 224 =

30) 574 + 124 =

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.