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) 145 + 910 =

2) 984 + 789 =

3) 113 + 636 =

4) 882 + 504 =

5) 878 + 382 =

6) 824 + 179 =

7) 988 + 810 =

8) 674 + 375 =

9) 536 + 942 =

10) 128 + 824 =

11) 325 + 582 =

12) 768 + 173 =

13) 468 + 881 =

14) 247 + 825 =

15) 320 + 879 =

16) 382 + 776 =

17) 224 + 389 =

18) 964 + 175 =

19) 364 + 328 =

20) 874 + 895 =

21) 615 + 265 =

22) 732 + 915 =

23) 264 + 605 =

24) 551 + 707 =

25) 426 + 928 =

26) 251 + 222 =

27) 916 + 606 =

28) 186 + 120 =

29) 409 + 557 =

30) 921 + 336 =

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.