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Add and Subtract within 1000

Grade 3 Common Core Math Standard

Aligned To Common Core Standard:

Grade 3 Base Ten - 3.NBT.2

Printable Worksheets And Lessons


  • Mixed Step-by-step Lesson- Start with an expanded form problem, then move on to a sum and a difference.

  • Guided Lesson - These are pretty random. I was just trying to cover everything in a sort of shotgun approach, I guess.

  • Guided Lesson Explanation - This one is a complete walk through for each problem.

  • Practice Worksheet - We add and subtract vertically and then we ask kids to setup the problems themselves based on input / output chart.

  • Matching Worksheet - Find the missing part of each problem.

AnswersAnswer Keys



View Answer Keys- All the answer keys in one file.





More Worksheets (Click Here to Upgrade)



Homework Sheets

One homework on each skill and the third sheet mixes them together.




Practice Worksheets

A direction based sheet, some matching, and some honest problems for you.




Math Skill Quizzes

15 of each type of problem in a standard format.