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) 366 + 421 =

2) 487 + 101 =

3) 626 + 764 =

4) 279 + 372 =

5) 707 + 868 =

6) 929 + 865 =

7) 224 + 371 =

8) 787 + 100 =

9) 149 + 686 =

10) 745 + 816 =

11) 292 + 100 =

12) 151 + 550 =

13) 615 + 997 =

14) 435 + 460 =

15) 788 + 852 =

16) 823 + 970 =

17) 530 + 318 =

18) 221 + 530 =

19) 334 + 508 =

20) 819 + 258 =

21) 295 + 341 =

22) 148 + 208 =

23) 153 + 642 =

24) 971 + 913 =

25) 915 + 813 =

26) 481 + 249 =

27) 919 + 172 =

28) 827 + 984 =

29) 336 + 808 =

30) 367 + 614 =

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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.