GMAT-Property of Signed Numbers Flashcards
1
Q
Properties of Signed Numbers
A
Remember that zero is neither positive nor negative and to
always consider zero when positive or negative is mentioned in a problem.
2
Q
positive + positive =
A
positive
3
Q
negative + negative =
A
negative
4
Q
positive + negative =
if add different, then unknown
A
unknown
5
Q
positive – positive =
OR
negative – negative =
(if subtracting the same type, then unknown)
A
unknown
6
Q
positive – negative =
If subtracting different, first one decides
A
positive
7
Q
negative – positive =
If subtracting different, first one decides
A
negative
8
Q
0 + negative =
A
negative
9
Q
0 + positive =
A
positive
10
Q
positive x positive =
A
positive
11
Q
negative x negative =
A
positive
12
Q
positive x negative =
A
negative
13
Q
0 x positive =
OR
0 x negative =
A
0
14
Q
positive/ positive =
A
positive
15
Q
negative / negative =
A
positive
