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Adding 1

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Adding 1 — free printable Grade 1 math worksheet

This worksheet focuses on adding 1 to numbers up to 20, helping students strengthen their addition skills and number sense. Teachers can use it as a practice tool to reinforce counting and simple addition concepts in Grade 1 classrooms. It supports skill-building in addition up to 20 through engaging, medium-difficulty exercises.

Learning objectives

  • Recognize numbers up to 20 and add 1 to each number accurately
  • Demonstrate understanding of basic addition by solving problems involving adding 1
  • Develop number sense and fluency with addition facts within 20

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 1; 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 Adding 1 — free printable Math worksheet

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