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) 255 + 292 =

2) 678 + 563 =

3) 908 + 880 =

4) 762 + 423 =

5) 425 + 556 =

6) 625 + 205 =

7) 781 + 557 =

8) 924 + 871 =

9) 472 + 193 =

10) 231 + 172 =

11) 779 + 322 =

12) 953 + 385 =

13) 917 + 770 =

14) 109 + 140 =

15) 307 + 858 =

16) 160 + 424 =

17) 872 + 609 =

18) 857 + 758 =

19) 150 + 961 =

20) 430 + 474 =

21) 289 + 274 =

22) 604 + 850 =

23) 601 + 848 =

24) 123 + 469 =

25) 605 + 979 =

26) 264 + 738 =

27) 990 + 150 =

28) 695 + 929 =

29) 425 + 232 =

30) 871 + 446 =

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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.