How to subtract integers
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PSAT Math › How to subtract integers
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1
The annual number of cellular phones purchased from a company is illustrated in the following graph. How many more phones were sold in 2009 than 2011?
6,000
6
17,000
17
3,000
Explanation
In 2009, 32,000 phones were sold (according the the label on the y-axis, each number is equal to 1,000 phones). In 2011, 26,000 phones were sold.
