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Complete the addition or subtraction sentence: up to three digits

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Complete the addition or subtraction sentence: up to three digits — free printable Grade 3 math worksheet

This worksheet provides practice in completing addition and subtraction sentences with numbers up to three digits. Teachers can use it to reinforce students' fluency in mixed operations and strengthen their number sense. Ideal for Grade 3 classrooms, it supports skill development in solving and completing math sentences involving addition and subtraction.

Learning objectives

  • Solve addition and subtraction problems involving numbers up to three digits
  • Complete missing parts of addition or subtraction sentences accurately
  • Demonstrate understanding of mixed operations with three-digit numbers

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. Use the included answer key to mark it in seconds.

Good for

ClassworkHomeworkWarm-upCentersSmall groups

Answer Key

Answer key for Complete the addition or subtraction sentence: up to three digits — free printable Math worksheet

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