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149 Cards in this Set
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 Back
a.m

used to show time between midnight and noon

Associative Property of Multiplication

the way that factors are grouped does not change the product

certain

to be sure or definite

cube

a space figure with 6 congruent faces, 8 vertices, and 12 equal edges

decimal number

a number containing a decimal point

difference

the answer to a subtraction problem

endpoint

a point at the end of a line segment or ray

face

a flat surface on a space figure

frontend digit

the digit in the place with the greatest value

hexagon

a polygon with 6 sides and 6 vertices

inverse operations

2 operations with the opposite effect like multiplication and division

line graph

a graph used to show how data changes over time

median

the middle number when numbers are arranged from least to greatest

mirror image

the reverse image of a figure

numerator

the top number in a fractio; how many equal parts are being considered

ounce (oz)

a customary unit of mass

period

a group of 3 digits in a number separated by a comma from the other digits

plane figure

any 2dimensional figure

product

the answer to a multiplication problem

quotient

the answer to a division problem

remainder

the number that is left after dividing

space figure

a figure with 3 dimensions

teaspoon (tsp)

a customary unit of capacity

trapezoid

a quadrilateral with 1 pair of parallel sides and 1 pair of sides that are not parallel

whole number

any of the counting numbers 0, 1, 2, 3, 4, 5, 6, 7….

acute angle

an angle less than a right angle

average

the sum of addends divided by the number of addends

circle

a closed plane figure with all the points the same distance from center

cup, c

a customary unit of capacity

decimal point

a dot separating the ones and tenths places in a decimal number

digit

the symbols 0 to 9 used to write numbers

equally likely

outcomes having the same chance of happening

fact family

all related +/ or x/ facts that use the same numbers

frontend estimation

an estimation made using the frontend digit of a number

hundredths

the name of the second place after the decimal point

kilogram (kg)

a metric unit of mass

line of symmetry

a line on which a figure can be folded so that both halves are congruent

meter

a metric unit of length/distance

mixed number

a number written as a whole number and a fraction

obtuse angle

an angle greater than a right angle

outcome

a result of a probability experiment

perpendicular

2 lines that intersect and form right angles

plot

using an ordered pair to locate a point on a grid

Property of 1 for Division

any number divided by 1 is that number

range

the difference between the greatest number and the least number in a set of numbers

right angle

an angle with the shape of a square corner

sphere

a threedimesional figure with a curved surface that is shaped like a ball

tenths

the name of the first place after the decimal point

turn (rotation)

a transformation of a figure by turning it

word form

a number written in words

addend

a number that is added

bar graph

a graph that uses bars to compare data

closed figure

a plan figure that completely surrounds an area

customary system

a system of measurement used in the U.S.

decimeter (dm)

a metric unit of length

dividend

the number to be divided

equivalent decimals

2 decimals that are equal

factors

numbers that are multiplied to give a product

gallon (gal)

a customary unit of capacity

impossible

cannot happen

kilometer (km)

a metric unit of length

line segment

a part of a line with 2 endpoints

metric system

a measurement system based on tens

most likely

outcomes that have a greater chance of happening

octagon

a polygon with 8 sides and 8 vertices

p.m.

used to show the time between noon and midnight

pictograph

a graph that uses pictures or symbols to show data

point

any exact location in space represented by a dot

Property of 1 for Multiplication

the product of any number and 1 is that number

ratio

a comparison of two numbers

rotation

a transformation of a figure by turning it about a fixed point

sum

the answer to an addition problem

threedimensional (3D) figures

space figures that have length width and height

twodimensional figures (2D)

plane figures that have length and width

yard (yd)

a customary unit of length

angle

the figure made by 2 rays that extend from a common endpoint

capacity

the amount a container can hold

Commutative Property of Multiplication

the order in which numbers are multiplied does not change the product

cylinder

a space figure with 2 circular faces that are parallel and congruent

degree Celsius ( C)

a metric unit used to measure temperature

divisor

the number by which a number is divided

equivalent fractions

2 fractions that are equal

fraction

a number that names parts of a whole

gram (g)

a metric unit of mass

improper fraction

a fraction with a value greater than 1, the numerator is greater than or equal to the demonimator

least likely

outcomes that have a smaller chance of happening

liter (L)

a metric unit of capacity

milliliter (mL)

a metric unit of capacity

multiple

the product of a whole number and any other whole number

open figure

a plane figure that does not completely enclose an area

parallel

lines that are the same distance apart and do not intersect

pint (pt)

a customary unit of capacity

polygon

a closed plane figure made with line segments

pyramid

a space figure whose base is a polygon, and other faces are triangles that meet at a vertex

ray

a part of a line that has 1 endpoint and goes on and on in one direction

round

to estimate a number to the nearest ten, hundred, or thousand

square pyramid

a space figure with a square base and 4 faces that are triangles and meet in a vertex.

ton (t)

a customary unit of weight

Venn diagram

a diagram that uses intersecting circles to compare groups of objects

Zero Property of Division

0 divided by any number except 0 is 0. A number cannot be divided by zero.

area

the measure, in square units, of the inside of a plane figure

centimeter (cm)

a metric unit of length

cone

a space figure with 1 curved surface, 1 flat face, 1 curved edge, and 1 vertex

data

a collection of facts gathered by observation, questioning, or measuring

degree ( F)

a customary unit used to measure temperature

edge

the line where 2 faces of a space figure meet

estimate

an approximate rather than an exact answer

flip (reflection)

a transformation that results in a mirror image of a figure

graph

a drawing used to record information

inch (in.)

a customary unit of length

less than (<)

the symbol used to compare 2 numbers when the smaller number is on the left

mass

the weight of an object; the amount of matter in an object

millimeter (mm)

a metric unit of length

number line

a line on which points correspond to numbers

ordered pair

a pair of numbers used to name a location on a grid

pentagon

a polygon with 5 sides and 5 vertices

place value

the value determined by the position of a digit in a number

pound (lb)

a customary unit of mass

quadrilateral

a 4sided polygon

rectangular prism

a space figure with 6 rectangular faces, 8 vertices, and 12 edges

side

a line segment that is part of a plane figure

standard form

a number written with one digit for each place value

transformation

an operation on a geometric figure by which another image is created

vertex/vertices

the point or points where 2 or more line segments meet; the "corner"

Zero Property of Multiplication

the product of any number and 0 is 0.

array

an arrangement of objects in rows and columns

century

100 years

congruent

figures that have the same size and shape

decade

10 years

denominator

the bottom number in a fraction; the number of equal parts

elapsed time

the amount of time between 2 given times

expanded form

a way to write numbers that shows the value of each digit

foot (ft)

a customary unit of length

greater than (>)

the symbol used to compare 2 numbers when the larger one is on the left

intersecting lines

lines that cross at one point

line

a straight path that goes on and on in 2 directions with no endpoints

mean

the average of a set of numbers

mode

the number that appears most often in a set of numbers

number sentence

an equation or inequality written with numbers and symbols

ordinal number

a number telling the position of something

perimeter

the distance around a figure

plane

a flat surface that goes on and on in all directions

probability

the chance of something happening

quart (qt)

a customary unit of capacity

reflection

a transformation that results in a mirror image

slide (translation)

a transformation that moves a figure by slidings each of the points the same distance and direction

tablespoon (tbsp)

a customary unit of capacity

translation

a transformation that moves a figure by slidings each of the points the same distance and direction

volume

the number of cubic units that fit inside a space figure
