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) 952 + 899 =

2) 304 + 562 =

3) 239 + 611 =

4) 189 + 537 =

5) 608 + 844 =

6) 460 + 894 =

7) 623 + 179 =

8) 339 + 907 =

9) 526 + 952 =

10) 777 + 389 =

11) 728 + 645 =

12) 387 + 800 =

13) 739 + 105 =

14) 548 + 913 =

15) 514 + 217 =

16) 303 + 224 =

17) 991 + 997 =

18) 605 + 211 =

19) 496 + 708 =

20) 509 + 134 =

21) 763 + 307 =

22) 395 + 913 =

23) 353 + 184 =

24) 542 + 965 =

25) 801 + 125 =

26) 209 + 903 =

27) 887 + 793 =

28) 425 + 125 =

29) 333 + 115 =

30) 499 + 339 =

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.