1. Common Core State Standards
2. Math
3. Content
4. Grade 1
5. Number And Operations In Base Ten

Understand Place Value.

Outcomes

• 1.NBT.2
  Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
  Play Activities 39
  Examples
• 1.NBT.2.b
  The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
  Play Activities 18
  Examples
• 1.NBT.3
  Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
  Play Activities 9
  Examples