6th Grade Math

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Estimate a range for each sum.

3.89 + 42.71 + 12.32

I don't understand what to do for "estimating a range".

  • 6th Grade Math -

    The range is the numbers that the answer must fall between.

    3.89 = about 4
    42.71 = about 43
    12.32 = about 12

    Add those numbers in your head -- 59

    The range must be 58 - 60

  • 6th Grade Math -

    Thanks!!!

  • 6th Grade Math -

    You're welcome.

  • 6th Grade Math -

    35642รท65846

  • 6th Grade Math -

    why do eskimos wash their clothes in tide? Don't understand what the answer is

  • 6th Grade Math -

    First do front end estimation which is just adding the whole numbers. Round the decimals to either 0.50 or 1. Add it to your answer for the whole numbers. Last add it to the decimal answer and your range is going to be bweetn your whole number answer and your total answer you have for adding the decimals and whole numbers

  • 6th Grade Math -

    How do you do pi and trigonometry?

  • 30th Grade Math -

    nope

  • 6th Grade Math -

    what if you do all those steps but somehow it still wrong?

  • 6th Grade Math -

    Front end estimation will answer the question for you

    From Google:
    Front end estimation mostly produces a closer estimate of sums or differences than the answer produced by adding or subtracting rounded numbers.

    How to estimate a sum by front end estimation:

    Add the digits of the two highest place values
    Insert zeros for the other place values


    Example 1: 4496 + 3745 is estimated to be 8100 by front end estimation (i.e. 4400 + 3700).
    Example 2: 4496 + 745 is estimated to be 5100 by front end estimation (i.e. 4400 + 700).

  • 6th Grade Math -

    Thankyou so much! I was stuck on that question.

  • 6th Grade Math -

    ma name is jeff

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