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Published byClifford Flynn Modified over 8 years ago

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Decimals

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Addition & Subtraction

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Example Find: 15.12 + 3.2 - 12.04 Solution: 15.12 + 3.2 = 15.12 + 3.20 = 18.32 15.12 + 3.2 - 12.04 =18.32 – 12.04 = 6.28

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Multiplication

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Example Find: 12.5 x 35.02

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Solution (1) First multiply: 125 x 3502 125 x 3502 = 437750 (2) Second find he sum of he decimal places (to the right) of the wo numbers 12.5 and 35.02, which is here one plus two; that is three. (3) Now write the result of step (1), count three decimal places from the left and place the decimal point at the start of the third figure, like that: 437. 750

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Justification Another way to present the solution

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Division

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Examples

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Example (1)

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Example (2)

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Example (3)

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Example (4)

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