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Chapter 1 Math Vocabulary
Glencoe Course 2
32
Mathematics
7th Grade
09/11/2011

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Term
Square
Definition
is the product of a number and itself ex. Find the __________ of 3.  3*3=9  Multiply 3 by itself.  The answer is 9.  OR  Find the ________ of 15.  Multiply 15 by itself.  15*15 = 225  The answer is 225.
Term
Square Root
Definition
is one of its two equal factors  ex.  4*4 =16 , so the _________________ of 16 is 4 or is x*x or x2 =y then the _____________ of y =x.
Term
Order of Operations
Definition

Do all operations within grouping symbols first.  Evaluate all powers before other operations.  Multiply and divide in order from left to right.  

Add and subtract in order from left to right.

Term
Algebraic Properties
Definition

1.  Distibutive Property

2.  Commutative Property

3.  Associative Property

4.  Identity Property

Term
Distributive Property
Definition

5(2+4)=5x2+5x4

 

(3+2)4=3x4+2x4

Term
Commutative Property
Definition

3+2=2+3

 

7x4=4x7

Term
Associative Property
Definition

6+(3+8)=(6+3)+8

 

5x(2x3)=(5x2)x3

Term
Identity Property
Definition

4+0=4

 

4x1=4

Term
function
Definition
is a relationship that assigns exactly one output value for each input value.  The ________ rule gives the operation to perform on the input.
Term
4-step plan to solve a problem
Definition
1.  Explore  2.  Plan  3.  Solve  4.  Check
Term
factor
Definition
2 or more numbers that are multiplied together to form a product  ex. 7= 7*7*7*7*7 (Seven is used as a _________ 5 times.
Term
exponent
Definition
tells how many times the base is used as a factor ex. 24 (the 4 is the __________)
Term
base
Definition
the common factor ex. 24 (2 is the ________)
Term
powers
Definition
Numbers expressed using exponents ex. 52 is said five to the second ______ or five squared 
Term
squared
Definition
a number to the 2nd power
Term
cubed
Definition
a number to the third power
Term
evaluate
Definition
find the value of
Term
Standard form
Definition
numbers written without exponents ex.  25 = (2*2*2*2*2 this is standard form)
Term
Exponential form
Definition
numbers written with exponents ex. 3*3*3*3 = (34 this is exponential form)
Term
Perfect Square
Definition
Numbers like 9, 16, and 225 are called square numbers or ________________ because they are squares of whole numbers.  The factors multiplied to form perfect squares are called square roots.
Term
Numerical expression
Definition
a math problem that uses numbers
Term
Variable
Definition
a placeholder, usually a letter
Term
algebraic expression
Definition
it contains variables, numbers & at least one operation ex.  n+2
Term
equation
Definition
a sentence that contains an equals sign . 
Term
Solve an equation
Definition
process of finding a solution 
Term
sequence
Definition
an ordered list of numbers
Term
term
Definition
each number in a sequence
Term
arithmetic sequence
Definition
each term is found by adding the same number to the previous term ex. 8, 13, 18, 23,...(in this sequence, each term is founded by adding 5 to the previous term)
Term
function rule
Definition
the operation performed on the input 
Term
function table
Definition
you can organize the input numbers, output numbers and the function rule in this
Term
domain
Definition
the set of input values...all of the input numbers in your function table (1,2,3,4)
Term
range
Definition
the set of output values...all of the output values from your function table  (5, 10, 15, 20)
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