Division of Round Numbers

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What is a round number?
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A round number is a number that ends in one or more zeros, such as 10, 100, or 1000.
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What is the result of dividing 100 by 10?
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The result is 10.
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Divide 300 by 50.
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300 divided by 50 is 6.
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How do you divide round numbers easily?
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You can cancel the zeros at the end and then divide the smaller numbers.
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If you divide 400 by 20, what is the quotient?
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The quotient is 20.
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Why are round numbers easy to divide?
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Because you can simplify division by canceling out the zeros first.
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Divide 600 by 200 and find the quotient.
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600 divided by 200 is 3.
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What happens to the zeros when dividing round numbers?
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You can cancel zeros from both the dividend and divisor before dividing.
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Divide 8000 by 400.
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8000 divided by 400 is 20.
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Explain division when you have 1000 divided by 250.
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First simplify by canceling zeros and divide 100 by 25, which gives 4.
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What does it mean to simplify a division problem with round numbers?
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It means removing equal numbers of zeros from both numbers before dividing.
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Divide 500 by 100.
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500 divided by 100 is 5.
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Find the quotient of 9000 divided by 300.
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The quotient is 30.
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Why might someone choose to work with round numbers in division?
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Round numbers make calculations simpler and quicker.
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When dividing 2000 by 400, what strategy might you use?
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Cancel zeros first, then divide the smaller numbers 20 by 4 to get 5.
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