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) 190 + 657 =

2) 107 + 970 =

3) 320 + 119 =

4) 201 + 289 =

5) 141 + 352 =

6) 105 + 537 =

7) 720 + 985 =

8) 312 + 895 =

9) 648 + 541 =

10) 648 + 498 =

11) 207 + 556 =

12) 507 + 249 =

13) 228 + 893 =

14) 974 + 344 =

15) 479 + 409 =

16) 491 + 199 =

17) 889 + 907 =

18) 825 + 217 =

19) 847 + 960 =

20) 209 + 292 =

21) 265 + 473 =

22) 957 + 632 =

23) 911 + 588 =

24) 602 + 819 =

25) 412 + 404 =

26) 693 + 617 =

27) 999 + 884 =

28) 934 + 411 =

29) 320 + 831 =

30) 859 + 223 =

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.