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) 365 + 125 =

2) 570 + 946 =

3) 886 + 523 =

4) 162 + 208 =

5) 951 + 861 =

6) 329 + 564 =

7) 171 + 787 =

8) 236 + 828 =

9) 257 + 392 =

10) 946 + 192 =

11) 650 + 948 =

12) 564 + 889 =

13) 709 + 408 =

14) 148 + 271 =

15) 414 + 101 =

16) 104 + 550 =

17) 514 + 294 =

18) 731 + 555 =

19) 965 + 342 =

20) 797 + 719 =

21) 651 + 835 =

22) 764 + 126 =

23) 680 + 238 =

24) 228 + 847 =

25) 703 + 355 =

26) 170 + 786 =

27) 390 + 445 =

28) 724 + 276 =

29) 631 + 456 =

30) 700 + 459 =

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.