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Reading, Writing and Comparing Decimals Decimals are a way to show parts of a whole. Examples: 0.5 0.65 0.8 0.125

Reading, Writing and Comparing Decimals Decimals are a way to show parts of a whole. Examples: 0.5 0.65 0.8 0.125

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  • Slide 1
  • Reading, Writing and Comparing Decimals Decimals are a way to show parts of a whole. Examples: 0.5 0.65 0.8 0.125
  • Slide 2
  • Millions Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones Tenths Hundredths Thousandths Ten Thousandths Place Value Puzzle
  • Slide 3
  • Ten Thousandths Thousandths Hundredths Tenths Ones Tens Hundreds Thousands Ten Thousands Hundred Thousands Millions Moving Around with Place Values
  • Slide 4
  • Let's look at the place value chart. Name the underlined place value. 1.) 8.4572.) 2.97 3.) 0.03124.) 3.09
  • Slide 5
  • Read the number before the decimal point. Say and when you get to the decimal. Read the number after the decimal. Say the name of the place that the decimal ends in. Reading Decimals
  • Slide 6
  • How do we write or say decimals numbers? Write the following in word form. 1.) 2.93 ________________________________________________ 2.) 0.839 _______________________________________________ 3.) 5.7002 ______________________________________________ _______________________________________________________ 4.) 34.800367____________________________________________ _______________________________________________________
  • Slide 7
  • Write each number in standard form. 1.) forty-five hundredths __________________ 2.) three and two hundred eighty-four thousandths ________ 3.) twenty-eight ten-thousandths _________________ 4.) four and eighteen thousandths ________________ 5.) seventeen and thirty thousand five hundred eight millionths ________________
  • Slide 8
  • Equivalent Decimals: Name the same amount. 1.4 = 1.40 = 1.400 Compare and Order Decimal Numbers Review: - Name an equivalent decimal for 0.20 _______________ - Name an equivalent decimal for 0.060 _____________
  • Slide 9
  • Which decimal is smaller? Use. 0.75 0.9 Remember the mouth opens to the larger number method 1: Method 1: Using a grid
  • Slide 10
  • Which decimal is smaller? Use. Method 2: Using a number line. 1.9 1.35 0 1 2
  • Slide 11
  • 1.) You must compare decimals with the same number of place values. 2.) Rewrite the numbers vertically lining up the decimal points. 3.) Add zeros to fill in missing place values. 4.) Compare each place value, starting with the place value to the left. Method 3: Compare each place value Which decimal is smaller? Use. 3.09 3.145
  • Slide 12
  • Demonstrate understanding Compare using, or =. 1. 10.089 ______ 10.8902. 2.4 ________ 2.08 3. 658.848 _______658.4844. 34.50 ________34.5 5.) 81.98 ________81.098 6.) 5.008 _______5.08
  • Slide 13
  • Write the numbers in order form least to greatest. It is helpful to write the numbers vertically. 1.) 4.09 4.94.909 4.89 LE AST _____, ______, _____, _____ Greatest 2.) 2.78 3 3.782.0783.078 Le ast ____, ____, ____, ____, ____ Greatest 3.) 5.65.665.6065.065.006 LE AST ____, ____, ____, ____, ____ Greatest
  • Slide 14
  • Circle the greatest decimal. 1.) 3.093.903.009 2. ) 0.23 2.030.32 3.) 8.0128.128.2 Circle the smallest decimal 4.) 7.47.047.447.404 5.) 3.143.043.413.4 6.) 1110.410.0510.006