Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

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CCSS.5.NBT.B.7

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

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CCSS.5.NBT.B.7

Front

What is the value of 0.5 in cents?

Back

0.5 is equal to 50 cents.

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Front

If you have $10.00 and spend $3.75, how much do you have left?

Back

You have $6.25 left.

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CCSS.6.NS.B.3

Front

What is the sum of 1.25 and 2.75?

Back

The sum is 4.00.

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CCSS.6.NS.B.3

Front

What is the difference between 5.50 and 2.25?

Back

The difference is 3.25.

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CCSS.5.NBT.B.7

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator. For example, 1/4 = 0.25.

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CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What is the total cost if you buy 3 items at $2.50 each?

Back

The total cost is $7.50.

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CCSS.7.EE.B.3

Front

If a meal costs $8.00 and you have a $2.00 coupon, what is the final cost?

Back

The final cost is $6.00.

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CCSS.7.EE.B.3