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Round Decimals

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Learn how to round decimals!

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Round Decimals

1. 1. Round Decimals Mrs. Young EMC 1
2. 2. How do I round decimals??? <ul><li>Rounding decimals </li></ul><ul><ul><li>Very similar to rounding whole numbers – the only difference is that there is a decimal point! </li></ul></ul><ul><ul><li>Look at the digit to the right of where you are rounding </li></ul></ul><ul><ul><ul><li>If the digit is 4 or less, round down </li></ul></ul></ul><ul><ul><ul><li>If the digit is 5 or more, round up </li></ul></ul></ul>
3. 3. Rounding Decimals <ul><li>Round to the nearest hundredth </li></ul><ul><ul><li>6.2 7 8 </li></ul></ul><ul><ul><li>The number to the right of the 7 is an 8 </li></ul></ul><ul><ul><ul><li>8 is greater than five so I need to round up! </li></ul></ul></ul><ul><ul><ul><li>The 2 becomes a 3 and everything else becomes a 0 </li></ul></ul></ul><ul><ul><ul><li>6.278 rounded to the nearest hundredth equals 6.300 </li></ul></ul></ul>
4. 4. More on Rounding Decimals <ul><li>Round to the nearest tenth </li></ul><ul><li>4. 0 82 </li></ul><ul><li>The number to the right of 0 is 8 </li></ul><ul><li>8 is greater than 0, which means that I need to round the 0 up to a 1 </li></ul><ul><li>All numbers after the 1 will become a 0 </li></ul><ul><li>The answer is 4.100 </li></ul>
5. 5. More practice! <ul><li>Round to the nearest hundredth </li></ul><ul><li>0.5 5 1 </li></ul><ul><ul><li>The number to the right of the 5 is 1 </li></ul></ul><ul><ul><ul><li>1 is less than four so I need to round down! </li></ul></ul></ul><ul><ul><ul><li>The 5 stays as a 5 and everything else becomes a 0 </li></ul></ul></ul><ul><ul><ul><li>0.551 rounded to the nearest hundredth equals 0.550 </li></ul></ul></ul>
6. 6. You do it now! <ul><li>Round to the nearest hundredth </li></ul><ul><li>9.718 </li></ul><ul><li>4.981 </li></ul><ul><li>0.9876 </li></ul><ul><li>0.653 </li></ul>
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