UNDERSTANDING PLACE VALUE M.1.NBT.2 understand the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special.

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Presentation transcript:

UNDERSTANDING PLACE VALUE M.1.NBT.2 understand the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases: 10 can be thought of as a bundle of ten ones — called a “ten.” The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight or nine ones. The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight or nine tens (and 0 ones). (CCSS Math.1.NBT.2)

ONES & TENS One’s 1-9 Ten

PLACE VALUE SONG Mr. R’s Songs for Teaching(2011, October 24). Place Value Math Song: Ones, Tens, Hundreds. Retrieved from

EXAMPLES 2442

TEST YOUR KNOWLEDGE

ADDITIONAL RESOURCES Place Value Hockey Place Value Lesson Citation: Common Core 4 Kids (2012, December 8). Place Value Lesson. Retrieved from Mr. R’s Songs for Teaching(2011, October 24). Place Value Math Song: Ones, Tens, Hundreds. Retrieved from