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) 286 + 343 =

2) 342 + 571 =

3) 735 + 280 =

4) 769 + 938 =

5) 244 + 324 =

6) 603 + 624 =

7) 912 + 199 =

8) 282 + 982 =

9) 424 + 171 =

10) 611 + 548 =

11) 280 + 740 =

12) 753 + 447 =

13) 943 + 764 =

14) 598 + 684 =

15) 946 + 147 =

16) 511 + 821 =

17) 985 + 733 =

18) 294 + 781 =

19) 530 + 477 =

20) 947 + 818 =

21) 239 + 749 =

22) 865 + 849 =

23) 867 + 459 =

24) 787 + 685 =

25) 727 + 899 =

26) 778 + 219 =

27) 324 + 591 =

28) 149 + 300 =

29) 884 + 440 =

30) 394 + 156 =

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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.