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) 569 + 971 =

2) 902 + 182 =

3) 669 + 851 =

4) 694 + 120 =

5) 177 + 270 =

6) 399 + 343 =

7) 801 + 170 =

8) 969 + 264 =

9) 508 + 850 =

10) 396 + 991 =

11) 150 + 941 =

12) 781 + 241 =

13) 320 + 375 =

14) 211 + 494 =

15) 619 + 394 =

16) 371 + 616 =

17) 310 + 139 =

18) 835 + 170 =

19) 235 + 988 =

20) 848 + 745 =

21) 147 + 212 =

22) 467 + 475 =

23) 986 + 949 =

24) 686 + 952 =

25) 676 + 307 =

26) 477 + 398 =

27) 658 + 349 =

28) 263 + 265 =

29) 817 + 245 =

30) 227 + 619 =

To view the results click on the "Show results" button.
To print the exercise sheet click on the "Print" button.
To generate a new exercise sheet click on the "Generate new worksheet" button.

Find also

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.