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) 852 + 217 =

2) 118 + 729 =

3) 923 + 841 =

4) 276 + 744 =

5) 490 + 380 =

6) 141 + 366 =

7) 473 + 415 =

8) 406 + 128 =

9) 349 + 139 =

10) 228 + 489 =

11) 184 + 977 =

12) 159 + 366 =

13) 591 + 143 =

14) 181 + 258 =

15) 250 + 481 =

16) 215 + 453 =

17) 514 + 650 =

18) 953 + 658 =

19) 973 + 708 =

20) 747 + 430 =

21) 202 + 215 =

22) 480 + 886 =

23) 717 + 501 =

24) 408 + 318 =

25) 767 + 991 =

26) 904 + 996 =

27) 742 + 325 =

28) 830 + 566 =

29) 928 + 350 =

30) 757 + 827 =

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.