Decimal Operations

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9.35

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CCSS.5.NBT.B.7

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15.75

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CCSS.6.NS.B.3

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1.31

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CCSS.5.NBT.B.7

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509.78

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CCSS.6.NS.B.3

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2.8

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CCSS.6.NS.B.3

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Define a decimal number.

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A decimal number is a number that includes a decimal point, which separates the whole number part from the fractional part.

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CCSS.5.NBT.A.3A

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What does it mean to add decimal numbers?

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Adding decimal numbers involves aligning the decimal points and adding each column, carrying over if necessary.

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CCSS.5.NBT.B.7

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Explain how to subtract decimal numbers.

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To subtract decimal numbers, align the decimal points, subtract each column, and borrow from the next column if needed.

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CCSS.5.NBT.B.7

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What is the process of multiplying decimal numbers?

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Multiply as if they are whole numbers, then count the total number of decimal places in both factors and place the decimal in the product accordingly.

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CCSS.5.NBT.B.7

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How do you divide a decimal by a whole number?

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To divide a decimal by a whole number, perform the division as usual and place the decimal point in the quotient directly above the decimal point in the dividend.

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CCSS.5.NBT.B.6

CCSS.6.NS.B.2