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) 820 + 280 =

2) 639 + 820 =

3) 144 + 154 =

4) 425 + 849 =

5) 802 + 122 =

6) 221 + 301 =

7) 767 + 308 =

8) 900 + 162 =

9) 385 + 448 =

10) 705 + 175 =

11) 694 + 489 =

12) 597 + 519 =

13) 290 + 538 =

14) 545 + 988 =

15) 206 + 167 =

16) 696 + 852 =

17) 320 + 688 =

18) 392 + 664 =

19) 686 + 484 =

20) 785 + 134 =

21) 169 + 962 =

22) 170 + 930 =

23) 891 + 304 =

24) 366 + 935 =

25) 812 + 499 =

26) 202 + 899 =

27) 788 + 626 =

28) 102 + 627 =

29) 168 + 481 =

30) 996 + 358 =

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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.