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The graph shows the number of visitors to three museums in 2005 and 2006.
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Calculate the difference in number of visitors the National Museum had between the two years.
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This graph shows three different museums’ visitor numbers, but we are only interested in the National Museums.
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So we know that we can focus on these two lines.
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We’re looking for the difference between the two years, and that means we’ll need to subtract.
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The red line represents 2006, and the green Line represents 2005.
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This key at the bottom of our graph tells us that the green would be 2005 and the red would be 2006.
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2006 had 200 visitors at the National Museum, and 2005 had 100 visitors to the National Museum.
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And what would be the difference between these two years?
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To find the difference, we’ll take the number of visitors in 2005 and subtract that from the number of visitors in 2006.
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200 minus 100 equals 100.
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The difference in number of visitors at the National Museum between 2005 and 2006 was 100 visitors.