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Place Value and Decimals

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Place Value and Decimals

1. 1. Place Value and Decimals Mrs. Young EMC 1
2. 2. Objective To understand decimals up to ten-thousandths
3. 3. Decimal Point <ul><li>The decimal point is ALWAYS read “ and ” </li></ul><ul><li>The value of numbers to the right of the decimal point is less than one </li></ul>
4. 4. Understanding Decimal Placement <ul><li>Say I have the decimal 0.318 </li></ul><ul><ul><li>The 0 is in the ones place </li></ul></ul><ul><ul><li>The 3 is in the ten ths place </li></ul></ul><ul><ul><li>The 1 is in the hundred ths place </li></ul></ul><ul><ul><li>The 8 is in the thousand ths places </li></ul></ul><ul><li>Notice that the place values after the decimal end in “TH” </li></ul>
5. 5. Different Ways to Write <ul><li>0.318 </li></ul><ul><li>Standard form: 0.318 </li></ul><ul><li>Word form: zero and three hundred eighteen thousandths OR three hundred eighteen thousandths </li></ul>
6. 6. Let’s try another! <ul><li>0.49 </li></ul><ul><li>Standard form: 0.49 </li></ul><ul><li>Word form: zero and forty-nine hundredths OR forty-nine hundreths </li></ul>
7. 7. How about another! <ul><li>6.2 </li></ul><ul><li>Standard form: 6.2 </li></ul><ul><li>Word form: six and two tenths </li></ul>
8. 8. Let’s try something different! <ul><li>Write in standard form </li></ul><ul><li>Eight and ninety seven hundredths </li></ul><ul><li>Sixty five thousandths </li></ul><ul><li>Five and 8 tenths </li></ul><ul><li>Fifty four and seventeen hundredths </li></ul>
9. 9. More practice! <ul><li>Write each decimal in words </li></ul><ul><li>1) 0.395 </li></ul><ul><li>4.56 </li></ul><ul><li>93.009 </li></ul><ul><li>14.7 </li></ul>
10. 10. Even more practice! <ul><li>Write the value of the underlined digit </li></ul><ul><li>8. 3 41 </li></ul><ul><li>56.7 3 </li></ul><ul><li>0.87 1 </li></ul><ul><li>82. 0 81 </li></ul>