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| Summary |
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 We use specific number of digits to denote the value of a number to a certain degree of accuracy. |
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For a number between 0 and 1, the successive zeros after the decimal are not significant. |
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For a number with a decimal point, the final zeros are significant. |
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For a whole number, the final zeros are not significant. |
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Numbers can be rounded off to any given place. |
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When we round off a number to any given place we get an approximate value of the number. |
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Absolute Error = |Original number - Approximate value| |
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Percentage Relative Error  |
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