Grade 2 · Number and Operations in Base Ten

CCSS.MATH.CONTENT.2.NBT.A.1a

100 can be thought of as a bundle of ten tens — called a "hundred."

Read this standard on the official Common Core site

Lessons that teach this standard

• Hundreds, Tens and Ones: Place Value to 1,000

  Second grade place value: see a hundred as ten tens, read three-digit numbers as hundreds, tens and ones, write them in words and expanded form, and compare them.