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) 427 + 128 =

2) 250 + 385 =

3) 196 + 971 =

4) 536 + 272 =

5) 750 + 421 =

6) 862 + 266 =

7) 265 + 267 =

8) 352 + 835 =

9) 107 + 254 =

10) 150 + 908 =

11) 396 + 784 =

12) 708 + 796 =

13) 483 + 189 =

14) 818 + 679 =

15) 956 + 456 =

16) 137 + 839 =

17) 452 + 721 =

18) 833 + 846 =

19) 346 + 932 =

20) 290 + 258 =

21) 233 + 219 =

22) 247 + 602 =

23) 954 + 426 =

24) 558 + 844 =

25) 571 + 913 =

26) 768 + 824 =

27) 289 + 183 =

28) 279 + 224 =

29) 866 + 508 =

30) 163 + 814 =

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.