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Vocabulary
Word
Number Line
Positive Number
Chapter 1
Definition
Line used to represent a set
of whole numbers; can be
horizontal or vertical
All numbers greater than 0
that includes whole
numbers, decimals and
fractions
Composite Number A number that has more
than 2 factors
Prime Number
Common Factor
Greatest Common
Factor
Example or Picture
1, 2, 2.5, 3, 31/2
18: 1x18 2x9 3x6
15: 1x15 3x5
A number that has only two
factors 1 and itself
3: 1x3
47: 1x47
A number that is a factor of
two or more numbers
12: 1, 2, 3, 4, 6, 12
16: 1, 2, 4, 8, 16
Common Factors: 1,2,4
The common factor of two
or more numbers that has
the greatest value
Common Multiple
A number that is a multiple
of two or more numbers
Least Common
Multiple
The common multiple of
two or more numbers that
has the least value
12: 1, 2, 3, 4, 6, 12
16: 1, 2, 4, 8, 16
GCF = 4
5: 5,10,15,20,25,30,35,40,45
15: 15,30,45,60
Common Multiples are
15,30,45
5: 5,10,15,20,25,30,35,40,45
15: 15,30,45,60
LCM = 15
Square
(of a number)
Exponent
52 = 5 x 5 = 25
The value of the number
raised to an exponent of 2
The number to which the
base is raised (tells how
many times to multiply the
number)
45 the exponent is 5
(4 x 4 x 4 x 4 x 4)
The number that is raised to
a certain exponent ( the
number to be multiplied)
36 3 is the base
Perfect Square
The square of a whole
number
64 is a perfect square since
64 = 8*8
Square Root
A number which, when
squared, is equal to the
given number
√100 = 10 since 10x10 = 100
The value of a number
raised to an exponent of 3
23 = 2 x2 x2= 8
Base
(of an exponent)
Cube
Perfect Cube
Cube Root
The cube of a whole number 343 is a perfect cube, since
343 = 7 x 7 x 7
A number which, when
cubed is equal to a given
number
3
√27 = 3 since 3 x 3 x 3 = 27