The Power of Ten and Place Value · Number and Operations in Base Ten

Bundling Tens and Ones

Understanding that the two digits of a two-digit number represent amounts of tens and ones.

Key Questions

  1. 1Why is it more efficient to count objects in groups of ten rather than by ones?
  2. 2How does the position of a digit change its actual value?
  3. 3What happens to a number when we add exactly ten more?

Common Core State Standards

CCSS.Math.Content.1.NBT.B.2CCSS.Math.Content.1.NBT.B.2a
Grade: 1st Grade
Subject: Mathematics
Unit: The Power of Ten and Place Value
Period: Number and Operations in Base Ten

Suggested Methodologies

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