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) 643 + 866 =

2) 239 + 828 =

3) 567 + 376 =

4) 669 + 369 =

5) 914 + 687 =

6) 497 + 655 =

7) 917 + 956 =

8) 489 + 502 =

9) 634 + 784 =

10) 512 + 841 =

11) 340 + 802 =

12) 140 + 164 =

13) 151 + 173 =

14) 866 + 627 =

15) 107 + 378 =

16) 688 + 511 =

17) 991 + 744 =

18) 761 + 310 =

19) 280 + 650 =

20) 610 + 521 =

21) 347 + 172 =

22) 606 + 451 =

23) 979 + 703 =

24) 608 + 960 =

25) 301 + 834 =

26) 118 + 486 =

27) 969 + 167 =

28) 853 + 364 =

29) 343 + 889 =

30) 401 + 909 =

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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.