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What are Place Values? 2nd Grade

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Presentation on theme: "What are Place Values? 2nd Grade"— Presentation transcript:

1 What are Place Values? 2nd Grade

2 Definition of Place Value
The position, or place, of a digit in a number written in standard form determines the actual value the digit represents.

3 Definition of Place Value (continued)
In our decimal number system, the value of a digit depends on its place, or position, in the number. Each place has a value of 10 times the place to its right. A number in standard form is separated into groups of three digits using commas. Each of these groups is called a period.

4 Table of Place values for various positions
Place (Underlined) Name of Position 1,000 Ones (units) position Tens Hundreds Thousands

5 Table of Place Values for various positions (continued)
Place (underlined) Name of Position 1,000,000 Ten thousands Hundred thousands Millions 1,000,000,000 Ten millions Hundred millions Billions

6 Example 725 Ones’ Place (There are 5 ones)
Hundreds’ Place (Plus there are 7 hundreds) Tens’ Place (Plus there are 2 tens) Ones’ Place (There are 5 ones)

7 Specific Place Values Numbers, such as 84, have two digits.  Each digit is a different place value. The left digit is the tens' place.  It tells you that there are 8 tens. The last or right digit is the ones' place which is 4 in this example.  Therefore, there are 8 sets of 10, plus 4 ones in the number 84. 84 Ones’ Place Tens’ Place

8 Place Values of Three Digit Numbers
Numbers, such as 784, have three digits.  Each digit is a different place value.   The first digit is called the hundreds' place.  It tells you how many sets of one hundred are in the number.  The number 784 had seven hundreds. 

9 Place Values of Three Digit Numbers (continued)
The middle digit is the tens' place.  It tells you that there are 8 tens in addition to the seven hundreds.  The last or right digit is the ones' place which is 4 in this example.  Therefore, there are 7 sets of 100, plus 8 sets of 10, plus 4 ones in the number 784.

10 254 What place is the 4 in? What place is the 5 in?
Tens’ Place Hundreds Place Ones’ Place What place is the 4 in? What place is the 5 in? What place is the 2 in?


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