Multiply Decimals by Whole Numbers

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What is the standard CCSS.MATH.CONTENT.5.NBT.B.7 about?

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The standard CCSS.MATH.CONTENT.5.NBT.B.7 focuses on multiplying decimals by whole numbers and understanding the placement of the decimal point in the product.

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CCSS.5.NBT.B.7

Front

How do you multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there were no decimal, then place the decimal point in the product based on the number of decimal places in the original decimal.

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CCSS.5.NBT.B.7

Front

What is the product of 1.9 and 5?

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The product of 1.9 and 5 is 9.5.

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CCSS.6.NS.B.3

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What is the product of 0.73 and 5?

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The product of 0.73 and 5 is 3.65.

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CCSS.6.NS.B.3

Front

How do you determine the correct decimal placement in multiplication?

Back

Count the total number of decimal places in the factors. The product should have the same number of decimal places.

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CCSS.5.NBT.B.7

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What is the product of 0.8 and 6?

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The product of 0.8 and 6 is 4.8.

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CCSS.6.NS.B.3

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What is the product of 0.2 and 6?

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The product of 0.2 and 6 is 1.2.

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CCSS.6.NS.B.3

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What is the result of multiplying 9.5 by 16?

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The result of multiplying 9.5 by 16 is 152.

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CCSS.6.NS.B.3

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What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten, and it is represented with a decimal point.

Front

What is a whole number?

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A whole number is a non-negative integer, which includes zero and all positive integers.