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) 483 + 690 =

2) 425 + 614 =

3) 684 + 901 =

4) 341 + 467 =

5) 572 + 475 =

6) 722 + 669 =

7) 370 + 403 =

8) 276 + 201 =

9) 163 + 759 =

10) 830 + 744 =

11) 770 + 559 =

12) 931 + 168 =

13) 620 + 196 =

14) 617 + 187 =

15) 458 + 902 =

16) 655 + 715 =

17) 849 + 973 =

18) 223 + 939 =

19) 585 + 993 =

20) 501 + 178 =

21) 869 + 238 =

22) 780 + 497 =

23) 110 + 874 =

24) 267 + 912 =

25) 418 + 194 =

26) 128 + 223 =

27) 741 + 112 =

28) 452 + 323 =

29) 785 + 408 =

30) 390 + 664 =

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.