Three-digit addition & subtraction worksheets
Each print is a different sheet with its own answer key. You don't need to sign up.
Check the sign first, then work one column at a time starting from the ones.
Two grades, each its own sheet. Print one here, or open a grade for examples and teaching notes.
Print by grade
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2nd grade
Second graders extend column addition and subtraction to three-digit numbers within 1000. The steps are the same ones they know from two-digit work. The sheets just add a hundreds column and mix addition with subtraction so the sign matters.
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3rd grade Core grade
Each print is a different sheet with its own answer key. You don't need to sign up.
Third graders are expected to add and subtract within 1000 fluently, regrouping included. These sheets alternate the two operations so your child reads each sign instead of running on autopilot, the exact skill mixed-operation tests check.
More on multi-digit addition & subtraction
All addition & subtraction worksheets →
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