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) 840 + 706 =

2) 337 + 636 =

3) 862 + 616 =

4) 579 + 517 =

5) 767 + 214 =

6) 889 + 298 =

7) 171 + 137 =

8) 715 + 816 =

9) 699 + 186 =

10) 194 + 785 =

11) 115 + 628 =

12) 276 + 930 =

13) 382 + 125 =

14) 359 + 815 =

15) 496 + 986 =

16) 561 + 447 =

17) 308 + 889 =

18) 370 + 491 =

19) 458 + 452 =

20) 346 + 992 =

21) 294 + 516 =

22) 505 + 952 =

23) 790 + 798 =

24) 972 + 168 =

25) 481 + 631 =

26) 485 + 536 =

27) 715 + 878 =

28) 971 + 273 =

29) 151 + 882 =

30) 665 + 587 =

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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.