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) 203 + 240 =

2) 983 + 248 =

3) 461 + 816 =

4) 896 + 411 =

5) 698 + 747 =

6) 909 + 744 =

7) 394 + 397 =

8) 805 + 962 =

9) 836 + 538 =

10) 556 + 147 =

11) 463 + 665 =

12) 863 + 977 =

13) 521 + 724 =

14) 966 + 521 =

15) 897 + 270 =

16) 859 + 869 =

17) 679 + 928 =

18) 446 + 606 =

19) 658 + 103 =

20) 972 + 434 =

21) 187 + 388 =

22) 111 + 529 =

23) 987 + 391 =

24) 724 + 533 =

25) 596 + 961 =

26) 389 + 953 =

27) 910 + 885 =

28) 554 + 311 =

29) 632 + 819 =

30) 381 + 627 =

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.