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Michael is making houses out of sticks.
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Each house needs five sticks.
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He has 15 sticks.
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How many houses can he make?
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The question is asking us how many houses Michael can make with 15 sticks if each house needs five sticks.
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Michael is using a number line to help him find the answer.
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He started at 15 on the number line, and then he counted back five.
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He took away five because he’d used five sticks to make one house.
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Then, he started at number 10 on the number line, and counted back another five because he used five sticks to make a second house.
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If Michael starts at number five and counts back another five, that will take him to zero.
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This means that Michael can make one more house.
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Michael started with 15 sticks, and he took away five three times.
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If Michael has 15 sticks and each house needs five sticks, he can make three houses.