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) 518 + 750 =

2) 158 + 726 =

3) 900 + 373 =

4) 328 + 147 =

5) 168 + 497 =

6) 579 + 515 =

7) 970 + 390 =

8) 553 + 552 =

9) 907 + 960 =

10) 837 + 903 =

11) 848 + 997 =

12) 343 + 432 =

13) 176 + 595 =

14) 865 + 139 =

15) 476 + 142 =

16) 638 + 213 =

17) 850 + 309 =

18) 688 + 865 =

19) 201 + 789 =

20) 806 + 730 =

21) 546 + 769 =

22) 140 + 223 =

23) 547 + 778 =

24) 781 + 924 =

25) 871 + 398 =

26) 799 + 280 =

27) 860 + 377 =

28) 252 + 158 =

29) 743 + 419 =

30) 893 + 664 =

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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.