Moving with algebra

107 flashcardsby kris
Study these flashcardsFree · spaced repetition · iPhone, Android, Mac & web

All cards

1
about
not exact, but very close to correct; approximate; almost
2
addend
any number that is added
3
addition
the operation that combines, or puts together, numbers
4
approximate
close to the exact number
5
array
an arrangement of objects in equal rows and columns
6
associative (grouping) property
the order in which you add or multiply THREE OR MORE numbers does not change the outcome. Example: a+(b+c)=(a+b)+c
7
average (mean)
a number that the other numbers cluster around, found by dividing the sum of a set of numbers by the number of addends in the set
8
base
the number used as the factor when a number is written in exponential form
9
common base
terms in exponential form that have the same base
10
common factor
a number that is a factor of two or more numbers
11
commutative (order) property
the order in which you add or multiply two numbers does not change the outcome. Example: a*b=b*a
12
composite number
a number that has more than two factors; a number that can be made with only one array
13
decimal fraction
a whole number divided into one-tenth or powers of tenths
14
decimal place value names
each place value to the right of the decimal point is a product of 1/10's
15
denominator
the bottom number in a fraction
16
difference
the answer in a subtraction problem
17
differences
qualities that are not alike
18
discount
a reduction in the regular price of an item
19
distributive property
if a, b, and c are real numbers, then a* (b + c) = (a * b) + (a * c). When a number is multiplied by the sum of two other numbers, the first number can be multiplied by each of them separately.
20
dividend
in a division problem, the number that is divided into parts
21
division
to take apart groups of equal size
22
divisor
in a division problem, the number that an amount is divided by
23
dozen
a group of twelve
24
equal sign ( = )
a symbol showing that two expressions are equal or have the same value
25
equation
a number sentence that uses the equal sign (=) to show that two expressions have the same vale
26
equivalent
equal in value but different in form
27
equivalent decimals
two or more decimals that are written differently but represent the same number
28
equivalent fractions
two or more fractions that are written differently but represent the same number
29
estimate
a number that is not exact; a careful guess.
30
expanded form/expanded notation
a way to write numbers that shows the value of each digit
31
exponent
a number that shows how many equal factors there are
32
exponential form
a way of writing a number using exponents
33
factor
one of two or more numbers or expressions that are multiplied to form the product
34
finite set
a set with a limited number of members
35
fraction
a way of showing equal parts of a whole or of a set
36
greater than sign ( > )
a symbol that shows that the number or expression on the left is larger than the number or expression on the right
37
greatest common factor
the greatest number that divides into two or more numbers evenly
38
gross pay
the amount of pay before deductions
39
grouping property ( also called the associative property)
the order in which you add or multiply three or more numbers does not change the result
40
hourly rate
the amount of pay received for an hour's work
41
identity element
a number that when you perform an operation on it with another number, the result is the other number
42
identity property of addition
when you add zero to a number, the sum equals that number
43
identity property of multiplication
when you multiply a number by one, the product is equal to that number
44
improper fraction
a fraction that has a numerator that is equal to or greater than the denominator
45
infinite set
a set that never ends
46
integers
the set of whole numbers and their opposites
47
interest formula ( I = prt )
the formula used to calculate the money earned on savings or paid for a loan
48
inverse (of a number)
the reciprocal of a fraction, formed by turning the fraction "upside down" (reversing the numerator and denominator)
49
inverse (opposite) operations
operations that undo each other, such as addition and subtraction or multiplication and division
50
least common multiple (LCM)
the least number that is a common multiple of two or more numbers
51
less than sign ( < )
a symbol that shows that the number or expression on the left is smaller than the number or expression on the right
52
like fractions
fractions that have the same denominator
53
lowest common denominator
the least number that is a common denominator of two or more fractions
54
lowest terms
when the numerator and denominator of a fraction have no common factors other than one
55
mean (average)
a number that the other numbers cluster around, found by dividing the sum of a set of numbers by the number of addends in the set
56
mixed decimal
a number written as a whole number and a decimal fractions
57
mixed number
a number written as a whole number and a decimal fraction
58
multiple
a number that is the product of a given number and any whole number
59
multiplication
putting together groups of equal size
60
natural numbers
the set of counting numbers
61
negative number
any number less than zero
62
net pay
the actual amount of pay received after deductions
63
net price
the amount paid on an item after a discount has been subtracted
64
numerator
the number above the line in a fraction that shows how many equal parts of the whole are being counted
65
open number sentence/open equation
a number sentence having an unknown number
66
opposite numbers
two numbers that are the same distance from zero; a number and its opposite have a sum of zero
67
order property
also called the commutative property. The order in which you add or multiply two numbers does not change the outcome
68
parentheses ( )
the symbols used to show which operation or operations in an expression should be done first.
69
percent
a special ratio that compares a number to 100 using the symbol %.
70
place value
a system of naming numbers in which the value of a digit depends on its position in the numeral
71
place value names (ones - hundred millions)
ones, tens, hundreds, thousands, ten thousands, hundred thousands, millions, ten millions, hundred millions
72
positive number
any number greater than zero
73
prime factor
finding prime factors of a number means to express a composite number as the product of prime numbers
74
prime number
a whole number that has exactly two factors, 1 and itself.
75
principal
the amount of money borrowed or loaned, upon which interested is calculated
76
product
the answer of a multiplication problem
77
proper fraction
a fraction that has a numerator that is less than its denominator
78
property
a rule that is always true
79
proportion
an equation that shows that two ratios are equal
80
quotient
the answer in a division problem
81
rate
a special kind of ratio that compares different units; a fraction or a ratio that compares two numbers
82
ratio
a comparison of two numbers using division
83
rational numbers
any number that can be written as a fraction
84
reasonable
an answer that is close to what is expected or estimated
85
reciprocal
the number that another number is multiplied by to get a product of one
86
regular price
the price of an item before a discount is taken
87
remainder
the number left over when you divided a whole number into another as far as you can without using decimals
88
repeating decimal
a fraction that has a decimal expression that shows a repeating pattern of digits
89
roster
a list of numbers of a set
90
rounding
changing a number to another number that is close to the original number, ends in zero and is easier to work with
91
sales tax
a percent of the purchase price added to the total cost
92
scientific notation
writing large or small numbers by writing the number as a decimal between 1 and 10, multiplied by a power of ten
93
set
a collection of elements that can be indicated by using a rule, by a roster with braces, or as a graph
94
similarities
characteristics in common or alike
95
simplify
when we simplify multiplication expressions that have exponents, we add the exponents of the common bases
96
square of a number
the total number of unit squares needed to form a larger square with sides equal to the given number; the product of the number times itself
97
standard notation/standard form
a way to write numbers using one digit for each place value
98
subtraction
the operation that takes a number apart or compares two numbers
99
sum
the answer in addition
100
table
a systematic way to organize information
101
terminating decimal
a decimal fraction that has a finite number of digits
102
total cost
the sum of the items purchased and the sales tax
103
unique
being the only one of its kind
104
variable
a symbol such as a box or a letter used used to represent an unknown number
105
Venn diagram
a drawing that shows the relationships among sets of objects, numbers, or ideas
106
whole numbers
the set of counting numbers and zero
107
zero property
the product of any number and zero is zero
Study all 107 cards for free