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Place Value 2nd Grade

Pennsylvania Core Standards: CC.2.1.2.B.1
Use place-value concepts to represent amounts of tens and ones and to compare three digit numbers.

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

Pennsylvania Core Standards: CC.2.1.2.B.1

Use place-value concepts to represent amounts of tens and ones and to compare three digit numbers.

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