DECIMAL NOTATION

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DECIMAL NOTATION

• MATH 6th GRADE

JOANNE GROSSMAN
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CURRICULULM OBJECTIVES

• To use place value to express, compare, and
  order decimals
• Write numbers in decimal notation
• Represent decimal numbers using a
• grid model

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WHY USE DECIMALS?

• The place value of ones, tens, hundreds,
  thousands, etc. allows you to write whole
  numbers.
• You can write numbers that are less than
  one, or in between whole numbers by using a
  decimal point.
• Expressing, comparing, and ordering decimals,
  help you to make comparisons.
• Decimals are essential to express values
  accurately.

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COMPARISONS

• Decimals are used to compare
• PRICES
• OLYMPIC PERFORMANCES
• BATTING AVERAGES
• DISTANCES
• MEASUREMENTS

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PLACE VALUE CHART
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READING WRITINGDECIMALS

• All the place values to the right of the decimal
  are less than one.
• Decimal place values have names that end in th
• The decimal point is read as and
• To read a decimal, read the number name it by
  the place value it ends in.
• Ex 1.57 is read as one fifty-seven hundredths
• Ex .43 is read as forty-three hundredths

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WORD FORM FORTY-EIGHT HUNDREDTHSNUMBER FORM
.48

• To read a decimal Read the number name it by
  the place it lands in on the place value chart.
  The 8 is two places to the right of the decimal
  on the decimal place chart. It is read as
  forty-eight hundredths. (48 out of 100 boxes are
  filled) This is the same as 48 cents out of a
  dollar.

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WORD FORM FIFTY-THREE HUNDREDTHSNUMBER FORM
.53
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WORD FORM SEVEN TENTHSNUMBER FORM .7
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WORD FORM ONE EIGHT TENTHS NUMBER FORM 1.8
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WORD FORM ONE FIVE TENTHS
NUMBER FORM 1.3
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