Grade level: 4-5th grades

Skills: Subtraction (decimals)

Related environmental issues: Energy

The average gasoline price in the entire United States was $1.724 per gallon in mid-February, 2016. The average gasoline price in the Midwest region was $1.522 in the same period of time.

1.What was the difference between the gas price in the Midwest region and the average gas price in the US per gallon?

2.The average gasoline price in the West region was $2.217 per gallon in mid-February. By how much was the price in the West higher or lower than the price in the Midwest?

3.The average gasoline price in the United States was 3.326 in mid-February, 2015.  How much did the average gasoline price per gallon in the US change over the year?

Source: US Energy Information Administration

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Answer keys

1.$0.202 (1.724 – 1.522 = 0.202)

2.$0.695 (2.217 – 1.522 = 0.695)

3.$ 1.602 (3.326 – 1.724 = 1.602)