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) 894 + 801 =

2) 971 + 987 =

3) 544 + 631 =

4) 970 + 669 =

5) 435 + 877 =

6) 648 + 346 =

7) 744 + 800 =

8) 853 + 381 =

9) 480 + 613 =

10) 896 + 145 =

11) 580 + 832 =

12) 510 + 241 =

13) 913 + 434 =

14) 232 + 458 =

15) 594 + 501 =

16) 339 + 265 =

17) 171 + 210 =

18) 252 + 712 =

19) 223 + 880 =

20) 105 + 729 =

21) 621 + 400 =

22) 274 + 530 =

23) 722 + 865 =

24) 369 + 358 =

25) 637 + 856 =

26) 692 + 593 =

27) 892 + 963 =

28) 123 + 838 =

29) 770 + 497 =

30) 259 + 739 =

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.