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) 344 + 897 =

2) 840 + 799 =

3) 858 + 770 =

4) 583 + 157 =

5) 939 + 521 =

6) 792 + 847 =

7) 870 + 424 =

8) 489 + 130 =

9) 697 + 321 =

10) 579 + 131 =

11) 513 + 686 =

12) 935 + 785 =

13) 429 + 428 =

14) 230 + 493 =

15) 860 + 669 =

16) 499 + 302 =

17) 849 + 513 =

18) 547 + 130 =

19) 616 + 442 =

20) 831 + 432 =

21) 416 + 335 =

22) 782 + 491 =

23) 472 + 508 =

24) 854 + 563 =

25) 666 + 170 =

26) 657 + 233 =

27) 369 + 765 =

28) 144 + 859 =

29) 745 + 262 =

30) 382 + 468 =

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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.