A decimal represents a part of a whole number and is used to represent fractions or amounts less than one. It is commonly used to represent monetary amounts by showing the fractional part of a dollar. To read a decimal, you say the whole number followed by the name of the place value of the decimal place being read, such as twelve and thirty-five hundredths for 12.35. Decimals can be compared by writing them with their decimal points aligned and ordering the values from greatest to least starting with the largest place value.
8. Let’s Look at Some Place Value AND 2 8 7 3 1 Cents Ten Cents One Dollar Ten Dollars One Hundred Dollars 2 8 7 3 1 Hundredths Tenths Ones Tens Hundreds
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10. Let’s Write these Numbers in Expanded Form $100 + $30 + $7 + 80 ¢ + 2 ¢ = $137.82 If we are using money, it would look like this: If we are using decimals, it would look like this: 100 + 30 + 7 + .8 + .02 = 137.82
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