Review Flashcards
1
Q
What are natural numbers?
A
1,2,3… (N)
2
Q
What are whole numbers?
A
0,1,2,3…(W)
3
Q
What are Integers?
A
-3,-2,-1,0,1,2,3 (Z)
4
Q
What are rational numbers?
A
terminating or repeating decimal(5.6 or 5.666666…) (Q)
5
Q
Irrational
A
Neither terminates or repeats(5.42563763…) (I)
6
Q
Are all numbers real?
A
Yes.
7
Q
If the inequality <_ how do we write interval notation?
A
[-infinity, x)
8
Q
If the inequality sign is > how is interval notation written?
A
(x,infinity)
9
Q
How do you find the additive inverse?
A
a # you add to the given # to get 0
10
Q
How do you find the multiplicative inverse?
A
Flip the given #, and change it’s sign.
