How do you simplify #8.13-2.716#?

Question

Roman Alvarez · Accepted Answer

#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

Emery Allen · Answer

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

$$8.13 - 2.716 = 5.414.$$