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) 773 + 545 =

2) 563 + 254 =

3) 583 + 407 =

4) 583 + 299 =

5) 816 + 263 =

6) 148 + 190 =

7) 957 + 807 =

8) 142 + 995 =

9) 323 + 274 =

10) 349 + 593 =

11) 348 + 147 =

12) 643 + 450 =

13) 946 + 416 =

14) 566 + 508 =

15) 229 + 954 =

16) 704 + 142 =

17) 633 + 533 =

18) 823 + 660 =

19) 551 + 208 =

20) 281 + 715 =

21) 844 + 930 =

22) 765 + 970 =

23) 163 + 226 =

24) 953 + 525 =

25) 743 + 398 =

26) 897 + 247 =

27) 461 + 111 =

28) 487 + 607 =

29) 836 + 481 =

30) 895 + 106 =

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.