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) 628 + 464 =

2) 231 + 382 =

3) 661 + 506 =

4) 205 + 605 =

5) 790 + 982 =

6) 609 + 500 =

7) 402 + 290 =

8) 812 + 569 =

9) 786 + 916 =

10) 529 + 791 =

11) 852 + 958 =

12) 952 + 788 =

13) 749 + 670 =

14) 259 + 491 =

15) 135 + 390 =

16) 591 + 160 =

17) 477 + 467 =

18) 764 + 985 =

19) 489 + 132 =

20) 526 + 981 =

21) 726 + 628 =

22) 536 + 797 =

23) 590 + 953 =

24) 415 + 453 =

25) 601 + 441 =

26) 773 + 168 =

27) 864 + 521 =

28) 554 + 104 =

29) 570 + 619 =

30) 870 + 213 =

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.