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) 978 + 776 =

2) 288 + 152 =

3) 267 + 734 =

4) 964 + 159 =

5) 637 + 711 =

6) 419 + 801 =

7) 948 + 235 =

8) 528 + 734 =

9) 383 + 426 =

10) 191 + 677 =

11) 516 + 830 =

12) 736 + 195 =

13) 769 + 579 =

14) 510 + 200 =

15) 543 + 310 =

16) 161 + 885 =

17) 828 + 320 =

18) 192 + 454 =

19) 522 + 533 =

20) 398 + 441 =

21) 870 + 316 =

22) 329 + 475 =

23) 948 + 943 =

24) 625 + 258 =

25) 695 + 385 =

26) 849 + 114 =

27) 791 + 846 =

28) 753 + 759 =

29) 420 + 398 =

30) 130 + 220 =

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.