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) 954 + 257 =

2) 440 + 284 =

3) 849 + 199 =

4) 234 + 741 =

5) 258 + 737 =

6) 966 + 865 =

7) 262 + 933 =

8) 365 + 379 =

9) 938 + 231 =

10) 946 + 402 =

11) 242 + 879 =

12) 122 + 655 =

13) 249 + 941 =

14) 815 + 973 =

15) 152 + 595 =

16) 752 + 635 =

17) 405 + 866 =

18) 515 + 884 =

19) 663 + 451 =

20) 967 + 728 =

21) 837 + 452 =

22) 337 + 679 =

23) 251 + 448 =

24) 413 + 662 =

25) 436 + 646 =

26) 326 + 887 =

27) 259 + 269 =

28) 850 + 634 =

29) 361 + 624 =

30) 452 + 469 =

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.