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) 256 + 389 =

2) 924 + 246 =

3) 275 + 856 =

4) 672 + 494 =

5) 913 + 917 =

6) 382 + 135 =

7) 594 + 829 =

8) 894 + 935 =

9) 541 + 231 =

10) 695 + 430 =

11) 414 + 964 =

12) 549 + 528 =

13) 121 + 793 =

14) 144 + 860 =

15) 592 + 637 =

16) 130 + 790 =

17) 636 + 403 =

18) 294 + 761 =

19) 606 + 401 =

20) 515 + 564 =

21) 868 + 407 =

22) 800 + 303 =

23) 897 + 456 =

24) 107 + 699 =

25) 970 + 818 =

26) 831 + 602 =

27) 803 + 708 =

28) 347 + 432 =

29) 447 + 841 =

30) 757 + 661 =

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.