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) 670 + 919 =

2) 260 + 375 =

3) 995 + 259 =

4) 581 + 327 =

5) 442 + 916 =

6) 306 + 924 =

7) 770 + 806 =

8) 115 + 438 =

9) 863 + 405 =

10) 959 + 571 =

11) 818 + 551 =

12) 973 + 280 =

13) 159 + 821 =

14) 940 + 995 =

15) 291 + 395 =

16) 541 + 117 =

17) 765 + 820 =

18) 590 + 843 =

19) 110 + 904 =

20) 558 + 622 =

21) 291 + 662 =

22) 213 + 191 =

23) 824 + 258 =

24) 353 + 763 =

25) 429 + 138 =

26) 983 + 844 =

27) 726 + 380 =

28) 326 + 667 =

29) 811 + 538 =

30) 580 + 959 =

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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.