Best Buy: Unit Rates

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. It is often used to determine the cost per unit of a product.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the unit rate from a total cost and quantity?

Back

To calculate the unit rate, divide the total cost by the quantity. For example, if 8 apples cost $5.20, the unit rate is $5.20 ÷ 8 = $0.65 per apple.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the importance of comparing unit rates when shopping?

Back

Comparing unit rates helps consumers determine the best value for their money by identifying which product offers the lowest cost per unit.

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CCSS.6.RP.A.3B

Front

How can you determine which of two products is a better deal?

Back

To determine which product is a better deal, calculate the unit rate for each product and compare them. The product with the lower unit rate is the better deal.

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CCSS.6.RP.A.3B

Front

What is the unit rate for 15 kg of tomatoes costing $32.25?

Back

The unit rate is $32.25 ÷ 15 kg = $2.15 per kg.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 2 liters of milk cost $3.80, what is the unit rate?

Back

The unit rate is $3.80 ÷ 2 liters = $1.90 per liter.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit rate for 1.5 liters of milk costing $2.70?

Back

The unit rate is $2.70 ÷ 1.5 liters = $1.80 per liter.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you compare two different sizes of the same product to find the better buy?

Back

Calculate the unit rate for each size and compare them. The size with the lower unit rate is the better buy.

Tags

CCSS.6.RP.A.3B

Front

What is the unit rate for 27 ounces of nacho chips costing $3.51?

Back

The unit rate is $3.51 ÷ 27 ounces = $0.13 per ounce.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit rate for 10 ounces of nacho chips costing $1.30?

Back

The unit rate is $1.30 ÷ 10 ounces = $0.13 per ounce.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2