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) 337 + 453 =

2) 206 + 846 =

3) 745 + 210 =

4) 329 + 444 =

5) 773 + 509 =

6) 320 + 860 =

7) 594 + 957 =

8) 300 + 867 =

9) 706 + 652 =

10) 562 + 757 =

11) 127 + 538 =

12) 569 + 747 =

13) 883 + 377 =

14) 683 + 134 =

15) 696 + 581 =

16) 981 + 437 =

17) 106 + 256 =

18) 374 + 934 =

19) 707 + 325 =

20) 291 + 504 =

21) 555 + 348 =

22) 289 + 430 =

23) 108 + 279 =

24) 148 + 263 =

25) 412 + 464 =

26) 989 + 492 =

27) 723 + 369 =

28) 770 + 509 =

29) 324 + 194 =

30) 613 + 721 =

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.