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Math Vocabulary Test 12
Vocab. words and definitions from Saxon & Crosswalk lessons
27
Mathematics
5th Grade
03/21/2012

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Term
operations of arithmetic
Definition
the four basic mathematical operaions, addition, subtration, multiplication, & division
Term
parentheses
Definition
a pair of symbols used to set apart parts of an expression so those parts may be evaluated first
Term
numerical expression
Definition
a combination of numbers and operation signs
Term
degree
Definition
a unit for measuring angels
Term
protractor
Definition
a tool used to measure and draw angles
Term
pattern
Definition
a series of numbers or figures that follows a rule
Term
rule
Definition
describes how the terms are related in a pattern
Term
term
Definition
a number or figure in a pattern or expression
Term
ordered pairs
Definition
two numbers that give a location on a coordinate grid
Term
x-coordinate
Definition
the first number in an ordered pair
Term
y-coordinate
Definition
the second number in an ordered pair
Term
coordinate plane
Definition
a grid formed by a horizontal line called the x-axis and a vertical line called the y-axis
Term
x-axis
Definition
the left-right or horizontal axis on a coordinate grid
Term
y-axis
Definition
the up-down or vertical axis on a coordinate gird
Term
origin
Definition
the point where the axes meet on a coordinate grid, named by the ordered pair (0,0)
Term
denominator
Definition
the bottom number of a fraction; the number that tells how many parts
Term
fraction
Definition
a number that names part of a whole
Term
numerator
Definition
the top number of a fraction; the number that tells how many parts of a whole are counted
Term
simplest form
Definition
the form of a fraction whose numerator and denominator have only 1 as a common fraction
Term
equivalent fractions
Definition
different fractions that name the same amount
Term
greatest common factor
Definition
the largest whole number that is a factor of two or more given numbers
Term
improper fraction
Definition
a fraction with a numerator that is greater than or equal to the denominator
Term
like denominators
Definition
fractions with the same denominators
Term
unlike denominators
Definition
fractions with different denominators
Term
common denominator
Definition
a common multiple of two or more denominators
Term
benchmark
Definition
a common number that can be compared to another number
Term
least common denominator
Definition
the least common multiple of two or more denominators
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