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) 320 + 404 =

2) 376 + 711 =

3) 689 + 735 =

4) 247 + 146 =

5) 388 + 874 =

6) 921 + 608 =

7) 624 + 736 =

8) 454 + 103 =

9) 100 + 247 =

10) 863 + 761 =

11) 967 + 504 =

12) 981 + 447 =

13) 660 + 535 =

14) 250 + 485 =

15) 596 + 417 =

16) 518 + 609 =

17) 419 + 789 =

18) 490 + 777 =

19) 485 + 348 =

20) 603 + 596 =

21) 224 + 886 =

22) 335 + 535 =

23) 497 + 140 =

24) 121 + 551 =

25) 141 + 335 =

26) 888 + 827 =

27) 660 + 856 =

28) 610 + 710 =

29) 730 + 249 =

30) 861 + 764 =

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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.