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) 863 + 129 =

2) 975 + 481 =

3) 585 + 210 =

4) 398 + 355 =

5) 353 + 929 =

6) 673 + 643 =

7) 720 + 614 =

8) 350 + 630 =

9) 173 + 174 =

10) 307 + 249 =

11) 248 + 291 =

12) 175 + 313 =

13) 623 + 729 =

14) 638 + 792 =

15) 610 + 882 =

16) 838 + 899 =

17) 587 + 223 =

18) 536 + 216 =

19) 309 + 945 =

20) 249 + 524 =

21) 453 + 822 =

22) 413 + 826 =

23) 563 + 265 =

24) 626 + 210 =

25) 298 + 222 =

26) 214 + 257 =

27) 253 + 548 =

28) 354 + 619 =

29) 792 + 987 =

30) 328 + 453 =

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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.