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Thread: how do i know what place value should i round when doing loing division?

  1. #1
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    how do i know what place value should i round when doing loing division?

    lets say i have a long division with multi digit divisor problem and the dividend is too big to split into steps.

    and i need to round the numbers in order to make the calculations easier, how do i know witch place value of the dividend and the divisor to use as a target?
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  2. #2
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    Re: how do i know what place value should i round when doing loing division?

    Quote Originally Posted by HUNTER111 View Post
    lets say i have a long division with multi digit divisor problem and the dividend is too big to split into steps.

    and i need to round the numbers in order to make the calculations easier, how do i know witch place value of the dividend and the divisor to use as a target?
    Rounding is all based on the precision you are looking to achieve. It is impossible to know what is correct for your specific situation. I realize that this link is for Chemistry. It is the first link that came up in my Google search, but it will have more information, and will hopefully help you narrow down your question.

    https://opentextbc.ca/chemistry/chap...and-precision/
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  3. #3
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    Re: how do i know what place value should i round when doing loing division?

    so, its a matter of trial and error?
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  4. #4
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    Re: how do i know what place value should i round when doing loing division?

    Quote Originally Posted by HUNTER111 View Post
    so, its a matter of trial and error?
    It is a matter of knowing how accurate you want your result to be.

    Rounding Off After Multiplication and Division
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