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) 294 + 642 =

2) 670 + 435 =

3) 453 + 308 =

4) 695 + 443 =

5) 503 + 167 =

6) 289 + 567 =

7) 190 + 947 =

8) 298 + 697 =

9) 379 + 510 =

10) 462 + 649 =

11) 492 + 966 =

12) 489 + 861 =

13) 100 + 333 =

14) 917 + 525 =

15) 880 + 127 =

16) 497 + 360 =

17) 305 + 278 =

18) 228 + 706 =

19) 420 + 155 =

20) 810 + 898 =

21) 612 + 822 =

22) 150 + 980 =

23) 239 + 762 =

24) 570 + 823 =

25) 139 + 589 =

26) 615 + 932 =

27) 601 + 676 =

28) 718 + 681 =

29) 601 + 463 =

30) 825 + 934 =

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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.