2.1 decimal place value objective: to read and write decimal numbers in tenths, hundredths,...
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2.1 Decimal Place Value
Objective: To read and write decimal numbers in tenths, hundredths, thousandths, and ten-thousandths
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What is a Decimal?• A number that names a whole and part of a
whole
• It shows a value less than 1
• It uses a decimal point to separate the whole number from the decimal part.
• Now give me an example of a decimal…!!!
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123. 4578
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0011 0010 1010 1101 0001 0100 10114.973
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0011 0010 1010 1101 0001 0100 10117.0458
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Two thousand nine hundred four ten-thousandths
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2 + 0.01 + 0.007
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• Which is greater, one hundredths or one thousandths?
• Do 0.4 and 0.04 name the same decimal ? Explain
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Homework:Decimal Place Value Advertisements
1. Take a piece of construction paper to work on. You will also need crayons, markers or colored pencils.
2. Draw a picture of a toy or supermarket item that you would like to sell or that you would like to buy.
3. On the top of your paper, write a price for your toy. Your price must have digits in the tenths and hundredths place. Example: 25.87 LE
4. Next, you must write an advertisement for your price that includes the price of your toy in word form, expanded form and standard form.
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H.W. Example:
“The hottest toy is now available for $89.99! Guitar Hero will be the best money you ever spent! Get it now for just eighty-nine dollars and ninety-nine hundredths of a dollar. That is right it’s available for
80 + 9 + 0.9 + 0.09 dollars!”
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Class Work
Text Book Pg 24
Q 8, 10, 12, 14, 16, 17, 20, 22, 25
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Homework
PW Pg 6 Q 1 to 6, and 10 to 17