Place Value 2nd Grade

Common Core State Standards: 2.NBT.A.1.A
100 can be thought of as a bundle of ten tens — called a "hundred."
Common Core State Standards: 2.NBT.A.1.B
The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

2nd Grade Math - Place Value Lesson

A three-digit number is made up of hundreds, tens, and ones.
The digits in the number show how many hundreds, tens, and ones.

The number of hundreds, tens, and ones in a number can be shown using a model.
One way to model a number is to use base 10 blocks.
A flat represents 1 hundred, a rod represents 1 ten, and a unit represents 1 one.

Flat

Rod

Unit

Another way to model a number is to use a tally chart.
The tally marks show the number of hundreds, tens, and ones in the number.

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Place Value

Common Core State Standards: 2.NBT.A.1.A

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

Common Core State Standards: 2.NBT.A.1.B

The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

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