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) 186 + 180 =

2) 896 + 456 =

3) 918 + 829 =

4) 199 + 254 =

5) 119 + 481 =

6) 642 + 609 =

7) 587 + 893 =

8) 495 + 617 =

9) 968 + 865 =

10) 189 + 646 =

11) 949 + 266 =

12) 662 + 494 =

13) 347 + 168 =

14) 158 + 845 =

15) 646 + 714 =

16) 571 + 298 =

17) 720 + 755 =

18) 620 + 474 =

19) 610 + 214 =

20) 991 + 805 =

21) 276 + 371 =

22) 340 + 531 =

23) 298 + 263 =

24) 384 + 669 =

25) 154 + 226 =

26) 662 + 658 =

27) 163 + 949 =

28) 202 + 780 =

29) 123 + 667 =

30) 825 + 871 =

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.