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# Got a math test back i got 16.66 but it was marked wrong

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I got a math test back and the question was 5000(0.04)(0.0833) i got 16.66 but it was marked wrong she said it should have been 16.67 and that i just rounded wrong. i have tried on every calculator i have and i still only get 16.66 . I lost a point off my test for this and she wont admit that she maybe wrong and just blammed it on my calculator

Guest May 9, 2017
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Rounding is not done by the calculator. You must do it in your head, so you were wrong. ._.

HighSchoolCalculus  May 9, 2017
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I got a math test back and the question was 5000(0.04)(0.0833) i got 16.66 but it was marked wrong she said it should have been 16.67 and that i just rounded wrong. i have tried on every calculator i have and i still only get 16.66 . I lost a point off my test for this and she wont admit that she maybe wrong and just blammed it on my calculator

Your teacher is wrong unless you have not written the question correctly .. like maybe there was a dot above something indicating that it was a repeating decimal.

5000(0.04)(0.0833)

=10000(0.04)(0.0833)   /2

=833*0.04/2

=833*0.02

=833*0.01*2

=8.33*2

=16.66

You can show your teacher that if you want to :)      (I didn't use a claculator)

Melody  May 9, 2017
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They were probably asked to round if the correct answer was marked wrong. Then again there is nothing to round up. What am l even doing on here?! l have an AP test tomorrow! D:

HighSchoolCalculus  May 9, 2017
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Good luck HSC !! I have a calculus final exam tomorrow...and instead of studying I've been doing questions on here ...................Hahaha I really need to study

hectictar  May 9, 2017
edited by hectictar  May 9, 2017