Welcome to **The Number Line to 20 Counting by 1 (1) Math Worksheet from the Number Sense Worksheets Page at Math-Drills.com.** This math worksheet was created on **2008-01-16** and has been viewed **24** times this week and **99** times this month. It may be printed, downloaded or saved and used in your classroom, home school, or other educational environment to help someone learn math.

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