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) 613 + 624 =

2) 143 + 227 =

3) 496 + 651 =

4) 440 + 703 =

5) 214 + 946 =

6) 246 + 254 =

7) 704 + 606 =

8) 221 + 175 =

9) 576 + 617 =

10) 105 + 579 =

11) 350 + 707 =

12) 587 + 821 =

13) 255 + 165 =

14) 185 + 979 =

15) 113 + 911 =

16) 515 + 763 =

17) 351 + 183 =

18) 925 + 893 =

19) 243 + 722 =

20) 475 + 440 =

21) 480 + 662 =

22) 665 + 637 =

23) 131 + 193 =

24) 382 + 380 =

25) 981 + 492 =

26) 446 + 154 =

27) 650 + 580 =

28) 573 + 996 =

29) 135 + 655 =

30) 812 + 787 =

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.