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) 790 + 341 =

2) 742 + 637 =

3) 884 + 146 =

4) 926 + 445 =

5) 883 + 339 =

6) 114 + 288 =

7) 139 + 132 =

8) 740 + 302 =

9) 830 + 859 =

10) 101 + 865 =

11) 919 + 375 =

12) 822 + 850 =

13) 261 + 966 =

14) 776 + 365 =

15) 424 + 773 =

16) 991 + 367 =

17) 389 + 347 =

18) 479 + 650 =

19) 765 + 416 =

20) 561 + 564 =

21) 681 + 941 =

22) 427 + 681 =

23) 283 + 146 =

24) 482 + 360 =

25) 844 + 257 =

26) 937 + 522 =

27) 343 + 552 =

28) 624 + 499 =

29) 768 + 270 =

30) 319 + 912 =

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.