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) 844 + 958 =

2) 471 + 639 =

3) 215 + 646 =

4) 572 + 221 =

5) 166 + 541 =

6) 911 + 539 =

7) 740 + 782 =

8) 884 + 338 =

9) 790 + 282 =

10) 996 + 396 =

11) 586 + 761 =

12) 889 + 600 =

13) 601 + 451 =

14) 743 + 432 =

15) 448 + 929 =

16) 936 + 664 =

17) 812 + 455 =

18) 707 + 770 =

19) 155 + 438 =

20) 828 + 786 =

21) 110 + 632 =

22) 985 + 535 =

23) 751 + 376 =

24) 469 + 684 =

25) 693 + 988 =

26) 457 + 729 =

27) 430 + 370 =

28) 868 + 907 =

29) 558 + 797 =

30) 953 + 490 =

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.