Math Review

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attribute

a characteristic of an object. Attributes of a shape include the number of sides and length of the sides

benchmark fraction

a common fraction that you might compare other fractions to. For example, 1/2 can be used as a benchmark.

line plot

a data display that uses a number line to show measurement data

fraction

a number that names equal parts of a whole

equilateral triangle

a triangle that has all three sides the same length

unit fraction

a fraction with a numerator of 1

quadrilateral

a polygon with exactly four sides and four angles

parallelogram

a quadrilateral with opposite sides parallel and equal in length

pattern

a series of numbers or shapes that follow a rule to repeat or change

isosceles triangle

a triangle that has at least two sides with the same length

polygon

a two- dimensional closed figure made with three or more straight line segments that do not cross over each other

divisor

the number you divide by in a division problem

multiple

the product of a number and any other whole number

quotient

the result of division

product

the result of mulitplication

difference

the result of subtraction

compare

to decide if one number is greater that >, less than <, or equal to = another number

operation

a mathematical action such as addition, subtraction, multiplication, division

addend

a number being added

power of ten

a number that can be written as a product of tens

common denominator

a number that is a common multiple of the denominators of two or more fractions

factor

a number that is multiplied

mixed number

a number with a whole part and a fractional part

ordered pairs

a pair of numbers, (x,y) that describe the location of a point on a coordinate plane.

rectangle

a parallelogram with four right angles

hierarchy

a ranking of categories based on properties

right triangle

a triangle with one right angle

coordinate plane

a two-dimensional space formed by two perpendicular number lines called axes

right angle

an angle that looks like a square corner and measures 90 degrees

obtuse angle

an angle that measures more than 90 degrees but less than 180 degrees

acute angle

an angle with a measure less than 90 degrees

remainder

in division, the amount left over after equal groups have been made

data

information, often numerical information such as a list of measurements

scaling

resizing a quantity by multiplying

area

the amount of space inside a closed, two- dimensional figures. Area is measured in square units such as square centimeters

volume

the amount of space inside a solid figure. It is measured in cubic units such as cubic inches

perimeter

the distance around a two-dimensional shape.

x-axis

the horizontal number line in the coordinate plane

numerator

the number above the line in a fraction. It tells how many equal parts are described

denominator

the number below the line in a fraction. It tells how many equal parts are in the whole

dividend

the number that is divided in a division problem

decimal points

the period or dot used in a decimal that separates the ones place from the tenths place

origin

the point (0,0) where the x-axis and the y-axis intersect on a coordinate plane.

sum

the result of addition

place value

the value of a digit based on its position in a number

y-axis

the vertical number line in the coordinate plane

expanded form

the way a number is written to show the place value of each digit

standard form

the way a number is written using digits

convert

to change from one measurement unit to another

estimate

to make a close guess based on math thinking

divide

to separate into equal groups

perpendicular lines

two lines that meet to form a right angle, or a 90 degree angle

equivalent fraction

two or more fractions that have the same value. They name the same part of a whole and the same point on a number line.


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