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Skills Covered

  • Understand the value of each digit
  • Count groups of tens and ones
  • Represent numbers in different forms
  • Build number sense for multi-digit numbers
  • Connect visual models to numerals
  • Strengthen place value understanding

How to Use This Worksheet

Look at base-ten blocks and write the number in standard form. Numbers within 20.

Tips for Success

  • Use physical base-ten blocks alongside the worksheet
  • Have students say the number in expanded form aloud
  • Point out patterns in how tens and ones combine
  • Check that students count each block type separately before combining

Common Core Standards Alignment

This worksheet supports the following Common Core State Standards for Mathematics:

  • K.CC.A.3 Write the numerals 0 to 20 and use a numeral to show how many objects are in a group, with 0 meaning none.
  • K.NBT.A.1 Build and break apart 11 to 19 as ten ones plus more ones, recording with drawings or equations like 14 = 10 + 4.
  • 1.NBT.B.2b Know that 11 through 19 are each made of one ten plus 1 to 9 ones.

© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.

Base-Ten Standard Form to 20

K – 1st Grade

Look at base-ten blocks and write the number in standard form. Numbers within 20.

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What’s Included

  • 5 worksheet pages
  • Answer keys included
  • Grade level: K - 1st
  • Category: Place Value
  • Print-ready PDF format
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