6th Grade Math

Estimate a range for each sum.

3.89 + 42.71 + 12.32

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

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asked by David
  1. 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

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    posted by Ms. Sue
  2. Thanks!!!

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    posted by David
  3. You're welcome.

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    posted by Ms. Sue
  4. 35642รท65846

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

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    posted by hannah
  6. 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

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    posted by Faith
  7. How do you do pi and trigonometry?

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    posted by Faith
  8. nope

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    posted by boy
  9. what if you do all those steps but somehow it still wrong?

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    posted by Marek
  10. 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).

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    posted by Clarice
  11. Thankyou so much! I was stuck on that question.

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    posted by Matilde
  12. ma name is jeff

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  13. Thanks

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    posted by Bekfast
  14. what on earth is this website even do

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    posted by Ponies
  15. First question of 2019 hahaha EAT MY [content deleted] [content deleted] [content deleted] [content deleted] [content deleted] [content deleted] [content deleted] [content deleted] [content deleted] [content deleted] [content deleted] [content deleted]

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