How do you simplify #8.13-2.716#?

Answer 1

Roman Alvarez

#5.414# (without using significant figures).

To get the final answer to this answer, simply pull out a calculator and insert the following:

#8.13-2.716=?#

The below steps are very confusing. I will explain them. Refer back the following to understand my reasoning.

#8.130# - #2.716#

First off, we can immediately imagine a zero on the end of 8.13. It will help a lot.

Secondly, since we can't subtract #6# from #0# without making it negative, we must borrow a #1# from the #3#. This makes the #0# a #10# and the #3# a #2#.

Third, we can't subtract #7# from #1# either. So we borrow #1# from the #8# to make the #1# an #11#. This makes the #8# a #7# now.

Lastly we take the new numbers and subtract them. From left to right it looks like:

#7-2=5#

#11-7=4#

#2-1=1#

#10-6=4#

Now we assemble the number again with the decimal. #5.414# is the decimal version.

We have now found the answer to this problem by not using a calculator. Although it sometimes is easiest to use a calculator when doing problems like this. Unless otherwise instructed to not use a calculator, use one to your advantage!

Answer: #5.141

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Answer 2

Emery Allen

To simplify $8.13 - 2.716$ , subtract 2.716 from 8.13:

$8.13 - 2.716 = 5.414.$

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.