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) 784 + 866 =

2) 295 + 237 =

3) 273 + 113 =

4) 818 + 292 =

5) 458 + 858 =

6) 785 + 283 =

7) 870 + 886 =

8) 568 + 878 =

9) 574 + 633 =

10) 927 + 536 =

11) 552 + 169 =

12) 533 + 305 =

13) 354 + 883 =

14) 489 + 533 =

15) 678 + 898 =

16) 614 + 802 =

17) 851 + 981 =

18) 150 + 918 =

19) 678 + 428 =

20) 412 + 984 =

21) 199 + 838 =

22) 205 + 660 =

23) 509 + 892 =

24) 439 + 963 =

25) 467 + 922 =

26) 264 + 582 =

27) 906 + 497 =

28) 814 + 904 =

29) 902 + 257 =

30) 716 + 565 =

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.