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) 633 + 358 =

2) 759 + 881 =

3) 978 + 174 =

4) 277 + 655 =

5) 878 + 922 =

6) 270 + 555 =

7) 439 + 212 =

8) 832 + 399 =

9) 834 + 507 =

10) 227 + 746 =

11) 757 + 381 =

12) 805 + 726 =

13) 240 + 891 =

14) 933 + 460 =

15) 742 + 381 =

16) 788 + 953 =

17) 204 + 260 =

18) 644 + 499 =

19) 274 + 224 =

20) 382 + 340 =

21) 633 + 582 =

22) 948 + 112 =

23) 838 + 421 =

24) 483 + 963 =

25) 707 + 154 =

26) 176 + 378 =

27) 224 + 925 =

28) 312 + 242 =

29) 917 + 563 =

30) 893 + 691 =

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.