Use the minus sign.
Example 5 + (-4) = Five + negative Four.
What team are the Jags playing is the real question here Electric.
Short answer: No.
Long answer: Also no, but much more(or less) interesting.
www.mathsisfun.com/sine-cosine-tangent.html
or
www.youtube.com/watch?v=69rwfMGUYjM or http://www.MathTutorDVD.com(idk if this one is a good one :P)
SAME HERE.
Hmm...
Doesn't she remind anyone of Arya?
You do 0/9.99 because 0/# = that #
#/0 = undefined/NumError
False Info ^^^
Q: -1/3 * 3-3
-1/3 * 3 - 3 = -1/3 * 3/1 - 3
-1/3 * 3 = -1
(-1) - 3 = (-4)
A: (-4)
IF
I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1,000
then
MXC * VI = 1,090 * 6
1090 * 6 = 6540
_
6540 = VI DXL(in roman numerals)
+308 
NEVER 