Operations with "Signed" Numbers
Operations with signed numbers, including fractions and mixed numbers, are often very much misunderstood. Basically, when you operate with the signs and no
( ) you are For example: –3–4= –7 …
two like signs add Sometimes it
is helpful to separate the For example,
look at the difference in the above example and how the same example would look with
additional spacing … … now you can
clearly see that the numbers both have the Also,
–12 +5 = –7
… separation allows the eyes to see that the When you are
Even numbers of negative signs makes the answer
positive, while odd numbers of negative signs makes the answer negative.For example: SO, now what
would First
you would have to multiply For more information on a similar topic see the related
page Like Terms. The views and
opinions expressed in this page are strictly those of Mary Lou Baker. This page was edited on 09-Jan-2014 |