Reading, Writing and Comparing Decimals

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

Place Value Puzzle Thousandths Hundreds Hundred Thousands Ten Thousandths Tens Hundredths Ten Thousands Millions Thousands Tenths Ones

Moving Around with Place Values Hundred Thousands Ten Thousandths Ten Thousands Thousandths Hundredths Thousands Hundreds Millions Tenths Tens Ones

Let's look at the place value chart. Name the underlined place value. 1.) 8.457 2.) 2.97 3.) 0.0312 4.) 3.09

Reading Decimals 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.

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____________________________________________ _______________________________________________________

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 ________________

Compare and Order Decimal Numbers Review: Equivalent Decimals: Name  the same amount. 1.4 = 1.40 = 1.400 - Name an equivalent decimal for 0.20 _______________ - Name an equivalent decimal for 0.060 _____________

Which decimal is smaller? Use < or >. Remember the  mouth opens to the  larger number Method 1: Using a grid 0.75 0.9 method 1:

Which decimal is smaller? Use < or >. 1.9 1.35 Method 2: Using a number line. 2 1 0

Which decimal is smaller? Use < or >. 3.09 3.145 Method 3: Compare each place value 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.

Demonstrate understanding Compare using <,>, or =. 1. 10.089 ______ 10.890 2. 2.4 ________ 2.08 3. 658.848 _______658.484 4. 34.50 ________34.5 5.) 81.98 ________81.098  6.) 5.008 _______5.08

Write the numbers in order form least to greatest. It  is helpful to write the numbers vertically. 1.) 4.09  4.9 4.909  4.89 LEAST _____, ______, _____, _____ Greatest 2.) 2.78  3   3.78 2.078 3.078 Least ____, ____, ____, ____, ____ Greatest 3.) 5.6 5.66 5.606 5.06 5.006 LEAST ____, ____, ____, ____, ____ Greatest

Circle the greatest decimal. 1.) 3.09 3.90 3.009 2.) 0.23  2.03 0.32 3.) 8.012 8.12 8.2 Circle the smallest decimal 4.) 7.4 7.04 7.44 7.404 5.) 3.14 3.04 3.41 3.4 6.) 11 10.4 10.05 10.006

Reading, Writing and Comparing Decimals