Chapter 1 Flashcards
1
Q
Natural Numbers
A
N = 0 1 2 3 4 5 …
2
Q
Integers
A
Z = -3 -2 -1 0 1 2 3 …
negative numbers
3
Q
Rational numbers
A
Q = 1 3 7
—- —- —-
5 10 1
0.2 0.3 7 fractions and decimals
4
Q
Real numbers
A
Rational and irrational numbers
5
Q
Irrational numbers
A
Numbers that cannot be expressed as a fraction
6
Q
Prime numbers
A
Numbers whose factors are 1 and itself.
Note: one isn’t a prime number
7
Q
Composite numbers
A
Numbers whose factors are more than one and itself.
8
Q
Square numbers
A
A number multiplied by itself twice
9
Q
Cube numbers
A
A number multiplied by itself thrice
10
Q
Factors
A
Numbers who divide exactly into another number.
11
Q
2 square
A
4
12
Q
3 square
A
9
13
Q
4 square
A
16
14
Q
5 square
A
25
15
Q
6 square
A
36
16
Q
7 square
A
49
17
Q
8 square
A
64
18
Q
9 square
A
81
19
Q
10 square
A
100
20
Q
11 square
A
121
21
Q
12 square
A
144
22
Q
13 square
A
169
23
Q
14 square
A
196
24
Q
15 square
A
225
25
2 cube
8
26
3 cube
27
27
4 cube
64
28
5 cube
125
29
6 cube
216
30
7 cube
343
31
8 cube
512
32
9 cube
729
33
10 cube
1000
34
Prime factors
Numbers who are factors and prime numbers
35
Prime factorization method
Tree method and express them as a product of prime numbers.
a x a x b
36
Highest common factor
1. Express each as a product of prime factors using the tree method
2. Choose the common factors
3. Multiply them all
37
Lowest common multiple
Use the box method and multiply the numbers outside the box.
