Rounding with basic calculator

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Emily Vainberg 1D
Posts: 91
Joined: Sat Jul 20, 2019 12:15 am

Rounding with basic calculator

Postby Emily Vainberg 1D » Thu Oct 10, 2019 10:43 am

Since we don't have a scientific calculator for tests and quizzes, should we round to a few decimal points after each calculation since the basic calculator can't store the numbers?

005388369
Posts: 73
Joined: Sat Sep 28, 2019 12:16 am

Re: Rounding with basic calculator

Postby 005388369 » Thu Oct 10, 2019 10:59 am

We are allowed to use scientific calculators. We are not allowed to use graphing calculators.

Sahil Jog 1F
Posts: 109
Joined: Thu Jul 11, 2019 12:16 am

Re: Rounding with basic calculator

Postby Sahil Jog 1F » Thu Oct 10, 2019 11:02 am

It's always good to leave a couple of decimal points when computing your answer, as it will get as close to the real answer as possible, however, your final answer should include the correct amount of sig figs.

Veronica_Lubera_2A
Posts: 91
Joined: Sat Sep 14, 2019 12:16 am
Been upvoted: 1 time

Re: Rounding with basic calculator

Postby Veronica_Lubera_2A » Thu Oct 10, 2019 11:09 am

I asked one of the T.A.'s this question and he said that as long as in the steps of your calculation, you use more decimals than the required amount of sig figs, then you should be able to receive the correct answer when rounding at the end.

Audrie Chan-3B
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Rounding with basic calculator

Postby Audrie Chan-3B » Thu Oct 10, 2019 12:38 pm

We are allowed to use scientific calculators. When doing calculations, I usually leave 3 or 4 digits after the decimal and then apply sig figs for my last answer.

AlyshaP_2B
Posts: 95
Joined: Wed Sep 18, 2019 12:19 am

Re: Rounding with basic calculator

Postby AlyshaP_2B » Thu Oct 10, 2019 12:44 pm

One of the TA's I asked about sig figs said that it wasn't too big of a deal as long as all of the numbers in your answer were consistent in the number of sig figs used!

Sanjana K - 2F
Posts: 86
Joined: Sat Sep 07, 2019 12:17 am
Been upvoted: 1 time

Re: Rounding with basic calculator

Postby Sanjana K - 2F » Thu Oct 10, 2019 9:44 pm

Use the "Ans" key on your calculator whenever possible. We're allowed to use scientific calculators but not graphing calculators, so you should be able to store values. Also, I generally leave at least 5 numbers after each decimal point (for each step) and apply sig figs at the very end.

Mai V 4L
Posts: 55
Joined: Fri Sep 28, 2018 12:23 am

Re: Rounding with basic calculator

Postby Mai V 4L » Sun Dec 08, 2019 9:08 am

How important are the sig figs for the final, don't want to loose points :-//


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