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) 917 + 307 =

2) 591 + 830 =

3) 740 + 534 =

4) 343 + 943 =

5) 608 + 722 =

6) 830 + 898 =

7) 782 + 572 =

8) 168 + 342 =

9) 586 + 976 =

10) 473 + 647 =

11) 191 + 716 =

12) 919 + 117 =

13) 477 + 284 =

14) 508 + 544 =

15) 605 + 409 =

16) 442 + 216 =

17) 411 + 987 =

18) 102 + 993 =

19) 534 + 330 =

20) 361 + 575 =

21) 109 + 990 =

22) 669 + 550 =

23) 584 + 251 =

24) 561 + 963 =

25) 349 + 754 =

26) 631 + 425 =

27) 119 + 688 =

28) 144 + 253 =

29) 343 + 406 =

30) 995 + 137 =

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.