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) 425 + 697 =

2) 665 + 218 =

3) 140 + 390 =

4) 310 + 459 =

5) 119 + 609 =

6) 763 + 117 =

7) 754 + 654 =

8) 160 + 961 =

9) 944 + 158 =

10) 360 + 256 =

11) 785 + 904 =

12) 659 + 127 =

13) 881 + 660 =

14) 229 + 288 =

15) 461 + 630 =

16) 483 + 789 =

17) 262 + 687 =

18) 356 + 726 =

19) 466 + 245 =

20) 822 + 404 =

21) 868 + 284 =

22) 932 + 342 =

23) 422 + 659 =

24) 663 + 100 =

25) 856 + 989 =

26) 739 + 805 =

27) 413 + 410 =

28) 815 + 570 =

29) 902 + 715 =

30) 614 + 239 =

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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.