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) 463 + 884 =

2) 187 + 717 =

3) 783 + 361 =

4) 213 + 573 =

5) 414 + 462 =

6) 992 + 184 =

7) 946 + 611 =

8) 661 + 491 =

9) 276 + 215 =

10) 761 + 285 =

11) 816 + 325 =

12) 510 + 299 =

13) 758 + 281 =

14) 290 + 346 =

15) 172 + 887 =

16) 782 + 740 =

17) 271 + 604 =

18) 511 + 438 =

19) 217 + 685 =

20) 891 + 589 =

21) 101 + 804 =

22) 935 + 890 =

23) 397 + 343 =

24) 830 + 344 =

25) 855 + 201 =

26) 873 + 491 =

27) 846 + 504 =

28) 381 + 601 =

29) 893 + 122 =

30) 897 + 843 =

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.