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A girl has 10 stamp albums.
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If each album contains 264 stamps, how many stamps does she have?
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When we solve word problems, we always begin by highlighting the key numbers.
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We know the girl has 10 albums.
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And each album contains 264 stamps.
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And the question asks us how many stamps she has altogether.
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Now that we have the two numbers, we can begin to record the equation.
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We have number 10 and 264.
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We need to workout which operation to use.
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Each album contains 264 stamps.
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And the girl has 10 of them.
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If we think of each album as a group, we can say she has 10 groups of 264.
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When we use the words “groups of”, that’s the same as multiplying.
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So our equation is 10 multiplied by 264, which is the same as 264 multiplied by 10.
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Let’s see what happens to our number when we multiply it by 10.
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We can use the place value chart to help us.
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Our number has two hundreds, six tens, and four ones.
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When we multiply by 10, the number gets bigger and each digit will move one place to the left.
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So two hundreds becomes two thousands, six tens becomes six hundreds, and four ones becomes four tens.
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And then we record a zero in the ones column.
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264 multiplied by 10 is 2640.
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We found our answer by multiplying 264 by 10.
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We used our place value chart to help us.
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And we learned that when we multiply a number by 10, it gets greater by the power of 10 and each digit will move one place to the left in the place value chart.