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) 740 + 490 =

2) 118 + 209 =

3) 964 + 604 =

4) 455 + 723 =

5) 666 + 761 =

6) 565 + 972 =

7) 826 + 450 =

8) 447 + 982 =

9) 227 + 116 =

10) 221 + 559 =

11) 211 + 118 =

12) 131 + 807 =

13) 950 + 805 =

14) 526 + 605 =

15) 978 + 639 =

16) 124 + 473 =

17) 618 + 114 =

18) 216 + 226 =

19) 603 + 775 =

20) 264 + 636 =

21) 178 + 805 =

22) 305 + 825 =

23) 306 + 744 =

24) 783 + 850 =

25) 790 + 683 =

26) 923 + 746 =

27) 204 + 740 =

28) 129 + 329 =

29) 297 + 544 =

30) 272 + 504 =

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.