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) 669 + 340 =

2) 889 + 398 =

3) 477 + 396 =

4) 316 + 392 =

5) 810 + 255 =

6) 413 + 474 =

7) 635 + 787 =

8) 544 + 471 =

9) 965 + 207 =

10) 152 + 355 =

11) 887 + 558 =

12) 918 + 756 =

13) 460 + 644 =

14) 544 + 973 =

15) 805 + 868 =

16) 531 + 474 =

17) 876 + 327 =

18) 199 + 693 =

19) 533 + 471 =

20) 660 + 718 =

21) 173 + 788 =

22) 921 + 916 =

23) 170 + 434 =

24) 868 + 828 =

25) 825 + 129 =

26) 598 + 522 =

27) 901 + 681 =

28) 969 + 643 =

29) 268 + 770 =

30) 122 + 337 =

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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.