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) 989 + 285 =

2) 899 + 407 =

3) 971 + 314 =

4) 268 + 333 =

5) 125 + 144 =

6) 220 + 627 =

7) 162 + 957 =

8) 512 + 850 =

9) 624 + 410 =

10) 394 + 366 =

11) 639 + 259 =

12) 356 + 770 =

13) 865 + 462 =

14) 635 + 965 =

15) 554 + 667 =

16) 171 + 185 =

17) 633 + 814 =

18) 979 + 530 =

19) 979 + 463 =

20) 426 + 494 =

21) 427 + 940 =

22) 870 + 890 =

23) 814 + 147 =

24) 926 + 836 =

25) 419 + 412 =

26) 755 + 254 =

27) 922 + 657 =

28) 573 + 863 =

29) 824 + 771 =

30) 228 + 671 =

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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.