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Use expanded form to add three-digit numbers

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Use expanded form to add three-digit numbers — free printable Grade 3 math worksheet

This worksheet helps students practice adding three-digit numbers by breaking them down into expanded form. Teachers can use it to reinforce place value concepts and improve students' addition strategies. Ideal for Grade 3 math lessons focusing on addition and number sense.

Learning objectives

  • Decompose three-digit numbers into expanded form.
  • Add three-digit numbers using expanded form to simplify calculations.
  • Demonstrate understanding of place value in addition through expanded form.

How to use this worksheet

  1. Select “Sign in / Sign up to download”, then sign in with Google or email to get the PDF from KiwiBee Printables.
  2. Print at home or in class for Grade 3; it's no-prep, with no extra materials needed.
  3. Hand it out as classwork, homework, or a quick warm-up.

Good for

ClassworkHomeworkWarm-upCentersSmall groups

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