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) 126 + 965 =

2) 856 + 989 =

3) 789 + 839 =

4) 170 + 405 =

5) 245 + 647 =

6) 839 + 430 =

7) 158 + 285 =

8) 602 + 648 =

9) 845 + 869 =

10) 692 + 992 =

11) 778 + 371 =

12) 665 + 576 =

13) 551 + 654 =

14) 949 + 335 =

15) 597 + 916 =

16) 152 + 342 =

17) 798 + 710 =

18) 738 + 345 =

19) 854 + 414 =

20) 290 + 302 =

21) 369 + 164 =

22) 275 + 338 =

23) 138 + 550 =

24) 899 + 609 =

25) 951 + 555 =

26) 458 + 800 =

27) 615 + 418 =

28) 378 + 565 =

29) 915 + 527 =

30) 130 + 365 =

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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.