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) 155 + 740 =

2) 198 + 914 =

3) 678 + 122 =

4) 763 + 858 =

5) 910 + 888 =

6) 462 + 172 =

7) 706 + 536 =

8) 181 + 849 =

9) 698 + 353 =

10) 565 + 820 =

11) 686 + 666 =

12) 494 + 774 =

13) 943 + 992 =

14) 840 + 787 =

15) 923 + 416 =

16) 956 + 312 =

17) 500 + 392 =

18) 211 + 579 =

19) 733 + 157 =

20) 530 + 180 =

21) 156 + 609 =

22) 715 + 920 =

23) 693 + 291 =

24) 384 + 378 =

25) 351 + 793 =

26) 279 + 491 =

27) 784 + 489 =

28) 670 + 657 =

29) 505 + 884 =

30) 406 + 698 =

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.