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) 340 + 454 =

2) 418 + 218 =

3) 570 + 377 =

4) 969 + 339 =

5) 398 + 897 =

6) 696 + 218 =

7) 112 + 785 =

8) 324 + 940 =

9) 417 + 736 =

10) 995 + 757 =

11) 683 + 287 =

12) 611 + 594 =

13) 752 + 608 =

14) 689 + 688 =

15) 643 + 544 =

16) 222 + 327 =

17) 846 + 950 =

18) 511 + 831 =

19) 425 + 234 =

20) 725 + 814 =

21) 399 + 822 =

22) 606 + 867 =

23) 923 + 538 =

24) 859 + 519 =

25) 890 + 522 =

26) 451 + 545 =

27) 843 + 658 =

28) 627 + 518 =

29) 837 + 835 =

30) 202 + 870 =

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.