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Flashcards in Definitions Deck (18):
1

Real Number

any number with a decimal expansion

2

Natural numbers

1,2,3,4,

3

Whole numbers

0,1,2,3,4,

4

Integers

whole numbers and negatives -2,-1,0,1,2,3

5

Rational Numbers

All numbers whose decimal expansion either terminate or repeat
or the ratio of two integers

6

Irrational Numbers

all real numbers that are not rational

7

Nested Sets

we say a group of sets are nested if each set is contained in another set

8

Closure of Addition

a+b is a real number

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Commutative of Addition

a+b=b+a

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Associative of Addition

(a+b) +c = a+ ( b+c)

11

Identity of Addition

a+0=a
0+a=a

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Inverse of Addition

a+ -a=0

13

Closure of Multiplication

ab is a real number

14

Commutative of Multiplication

ab=ba

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Associative of Multiplication

(ab)c =a(bc)

16

Multiplicative Identity

a x 1= a
1 x a = a

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Multiplicative Inverse

a x 1/a = 1 when a is not = to 0

18

distributive

a(b+c) = ab +ac