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) 970 + 278 =

2) 732 + 320 =

3) 783 + 915 =

4) 854 + 828 =

5) 609 + 254 =

6) 341 + 298 =

7) 135 + 171 =

8) 682 + 372 =

9) 328 + 229 =

10) 965 + 975 =

11) 244 + 728 =

12) 388 + 126 =

13) 747 + 485 =

14) 712 + 295 =

15) 719 + 181 =

16) 231 + 424 =

17) 206 + 771 =

18) 594 + 288 =

19) 540 + 735 =

20) 840 + 990 =

21) 333 + 908 =

22) 859 + 868 =

23) 923 + 448 =

24) 826 + 259 =

25) 826 + 981 =

26) 760 + 465 =

27) 842 + 191 =

28) 174 + 396 =

29) 200 + 691 =

30) 431 + 525 =

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.