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) 226 + 100 =

2) 635 + 536 =

3) 812 + 931 =

4) 900 + 795 =

5) 329 + 401 =

6) 410 + 503 =

7) 968 + 366 =

8) 997 + 754 =

9) 258 + 837 =

10) 165 + 345 =

11) 614 + 361 =

12) 290 + 207 =

13) 524 + 832 =

14) 720 + 925 =

15) 467 + 204 =

16) 916 + 335 =

17) 296 + 800 =

18) 977 + 804 =

19) 172 + 457 =

20) 190 + 983 =

21) 272 + 122 =

22) 713 + 764 =

23) 697 + 853 =

24) 951 + 132 =

25) 714 + 905 =

26) 740 + 967 =

27) 131 + 157 =

28) 744 + 783 =

29) 188 + 179 =

30) 892 + 318 =

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.