DECIMAL OPERATIONS REVIEW

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What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part.

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How do you add decimals?

Back

Align the decimal points and add as you would whole numbers. Place the decimal point in the sum directly below the other decimal points.

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Front

How do you subtract decimals?

Back

Align the decimal points and subtract as you would whole numbers. Place the decimal point in the difference directly below the other decimal points.

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Front

What is the sum of 10.9 hours, 8.6 hours, and 12.4 hours?

Back

Front

How do you multiply decimals?

Back

Multiply as you would whole numbers, then count the total number of decimal places in both factors and place the decimal point in the product.

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Front

In a division problem, what do you do when there is a decimal in the dividend but not in the divisor?

Back

Move the decimal straight up in the quotient.

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