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) 874 + 532 =

2) 303 + 760 =

3) 264 + 794 =

4) 801 + 329 =

5) 494 + 495 =

6) 786 + 215 =

7) 227 + 810 =

8) 485 + 780 =

9) 509 + 380 =

10) 396 + 732 =

11) 433 + 351 =

12) 170 + 808 =

13) 238 + 423 =

14) 842 + 761 =

15) 657 + 771 =

16) 248 + 778 =

17) 205 + 784 =

18) 792 + 490 =

19) 917 + 141 =

20) 578 + 823 =

21) 392 + 664 =

22) 581 + 630 =

23) 313 + 424 =

24) 225 + 876 =

25) 109 + 226 =

26) 277 + 141 =

27) 298 + 411 =

28) 571 + 986 =

29) 932 + 359 =

30) 586 + 355 =

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.