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) 820 + 521 =

2) 246 + 484 =

3) 823 + 309 =

4) 897 + 563 =

5) 868 + 910 =

6) 499 + 806 =

7) 310 + 505 =

8) 979 + 514 =

9) 226 + 536 =

10) 472 + 199 =

11) 901 + 469 =

12) 227 + 233 =

13) 862 + 530 =

14) 621 + 249 =

15) 629 + 661 =

16) 834 + 787 =

17) 719 + 714 =

18) 658 + 576 =

19) 487 + 978 =

20) 114 + 924 =

21) 837 + 627 =

22) 771 + 897 =

23) 301 + 675 =

24) 102 + 236 =

25) 378 + 515 =

26) 969 + 343 =

27) 167 + 706 =

28) 735 + 455 =

29) 391 + 546 =

30) 198 + 740 =

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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.