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) 549 + 502 =

2) 201 + 812 =

3) 402 + 678 =

4) 757 + 459 =

5) 383 + 319 =

6) 453 + 877 =

7) 952 + 353 =

8) 111 + 139 =

9) 856 + 136 =

10) 955 + 172 =

11) 890 + 141 =

12) 159 + 350 =

13) 315 + 109 =

14) 266 + 364 =

15) 348 + 181 =

16) 638 + 925 =

17) 798 + 494 =

18) 545 + 215 =

19) 103 + 999 =

20) 393 + 195 =

21) 536 + 933 =

22) 750 + 912 =

23) 876 + 805 =

24) 395 + 935 =

25) 659 + 272 =

26) 158 + 466 =

27) 382 + 691 =

28) 408 + 926 =

29) 931 + 689 =

30) 112 + 371 =

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.