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) 192 + 396 =

2) 445 + 798 =

3) 333 + 246 =

4) 833 + 651 =

5) 209 + 596 =

6) 150 + 733 =

7) 634 + 971 =

8) 634 + 434 =

9) 805 + 740 =

10) 830 + 137 =

11) 222 + 684 =

12) 380 + 231 =

13) 412 + 747 =

14) 710 + 366 =

15) 480 + 836 =

16) 161 + 719 =

17) 762 + 874 =

18) 124 + 746 =

19) 399 + 354 =

20) 312 + 485 =

21) 371 + 183 =

22) 550 + 291 =

23) 789 + 359 =

24) 572 + 289 =

25) 189 + 687 =

26) 359 + 393 =

27) 244 + 154 =

28) 222 + 711 =

29) 915 + 431 =

30) 305 + 669 =

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.