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127 Cards in this Set
 Front
 Back
algorithm

a number sentence or equation


array

objects arranged in rows and columns


divide

sharing objects equally


dividend

the number to be divided


divisor

the number you divide by


factor(s)

the number(s) you multiply


product

the answer to a multiplication problem


quotient

the answer to a division problem


area

the total surface space or amount of an object. Area is measured in square units.


Celsius

the metric temperature scale measured in degrees. Water freezes at 0 degrees Celsius.


calendar

a monthbymonth picture of a year using months and days


centimeter

a metric unit measuring 1/100 of a meter


capacity

how much a container holds


cup

a unit used for measuring capacity


Customary System

a measuring system used mainly in the United States
Inches, Feet, Yard 

day

a unit for measuring time


degrees (temperature)

a unit for measuring temperature


difference

the answer that comes from subtracting one number from another


decrease

when the temperature drops or goes down on the thermometer


decimeter

a metric unit measuring 1/10 of a meter


Fahrenheit

a scale used to measure temperature in degrees


foot (ft)

a unit for measuring short lengths or distances
1 foot = 12 inches 

gram

a basic metric unit for measuring weight
1 gram = 1,000 milligrams 

hour (hr)

a unit measuring time
1 hour = 60 minutes 

inch (in.)

a unit for measuring length
12 inches = 1 foot 

kilogram (kg)

a metric unit for measuring weight
1 kilogram = 1,000 grams 

kilometer (km)

a metric unit for measuring distance
1 km = 1,000 milliliters 

liter

a basic metric unit for measuring liquids
1 liter = 1,000 milliliters 

meter (m)

a basic unit for measuring length and distance
1 meter = 100 centimeters 

metric

a measuring system based on the decimal system (tens)


minute (min)

a unit for measuring time
1 minute = 60 seconds 

minute hand

the longer hand on the clock that tells the minutes


perimeter

the distance around a figure


pint (pt)

a unit for measuring liquid
1 pint = 2 cups 

quart (qt)

a unit for measuring liquid
1 quart = 4 cups 

ruler

a tool used to measure length


square unit

unit for measuring area


yard (yd)

a unit for measuring length or distance
1 yard = 3 feet = 36 inches 

yardstick

a tool used to measure length


thermometer

a tool for measuring temperature


length

how long something is


width

how wide something is


increase

when the temperature rises or goes up on the thermometer


hour hand

the shorter hand on the clock that tells the hour


drop

when the temperature on a thermometer decreases or goes down


denominator

in a fraction, the number that stands for how many equal parts a whole is divided into


equivalent

having the same value


fraction

a number that stands for part of a whole or part of a group


numerator

in a fraction, the number that stands for how many parts of a whole or group are included


set

a group of items that have something in common


angle

two rays with a common end point


circle

a plane shape, not a polygon, that is closed with all of the points an equal distance from the center


congruent

figures that have the same size and same shape


corner (vertex)

where two edges or sides come together on a space or plane shape


base

a flat side of a cylinder or cone


cone

a space shape with one circular face and one vertex


cube

a space shape with all faces being congruent squares


edges

the place in which two faces on a space figure meet


faces

the flat side of a space figure


hexagon

a polygon with 6 sides


line of symmetry

a line that can be drawn on an object that cuts the object into two congruent halves


octagon

a polygon with 8 sides


parallelogram

a polygon with 2 sets of parallel sides


pentagon

a polygon with 5 sides


plane shape

a shape that is flat on a flat surface  it is two dimensional


polygon

a closed plane shape with three or more straight sides


pyramid

a space figure whose base is a plane figure and whose faces are triangles with one common corner


prism

a solid that is formed by the union of all the line segments that connect corresponding points on two congruent polygons that are located in parallel lines


quadrilateral

a plane figure with four sides and four corners


rectangle

a plane figure with four right angles and four sides


rectangular prism

a space figure whose faces are all rectangles


rhombus

a parallelogram with all four sides being equal


sides

the sides of a plane shape


solid figures

a geometric figures whose points are in more than one plane


sphere

a sold shape with a curved surface


square

a rectangle with four equal sides and four right angles


symmetry

a plane figure has symmetry if it can be folded along a line so that the two parts match exactly


trapezoid

a polygon with 4 sides in which two of the sides are parallel


triangle

a plane figure with three sides and three corners


probability

tells the chance that something will happen


survey

you ask a lot of people the same question


data

the answers you get to the same question you asked a lot of people  you organize it and study the answers


tally marks

one simple way to keep track of information you have collected


bar graph

a bar graph can show how data compare  vertical and horizontal bar graphs


pictograph

uses pictures or symbols to show data


event

something that may or may not happen


predictions

when you know the probability of an event, you can use the probability to make a prediction


certain

some events are certain and you KNOW they must happen


impossible

some events are impossible and you know that they can never happen


equally likely

outcomes that have the same chance of occuring


less likely

smaller chance that an event will happen


more likely

greater chance that an event will happen


length

how long something is


width

how wide something is


increase

when the temperature rises or goes up on the thermometer


hour hand

the shorter hand on the clock that tells the hour


drop

when the temperature on a thermometer decreases or goes down


denominator

in a fraction, the number that stands for how many equal parts a whole is divided into


equivalent

having the same value


fraction

a number that stands for part of a whole or part of a group


numerator

in a fraction, the number that stands for how many parts of a whole or group are included


set

a group of items that have something in common


angle

two rays with a common end point


circle

a plane shape, not a polygon, that is closed with all of the points an equal distance from the center


congruent

figures that have the same size and same shape


corner (vertex)

where two edges or sides come together on a space or plane shape


base

a flat side of a cylinder or cone


sum

the answer to an addition problem


difference

the answer to a subtraction problem


Addend

The numbers in an addition problem.


Addition

put together two or more values


Digit

Numbers from 0 to 9


Estimate

An approximate rather than an exact answer.


Fact family

A set of related number sentences


Missing addend

A number missing in the number sentence


Regroup

To rename a number


Subtraction

take away; compare two values; or find the missing part


Zero property of addition

A number added to zero will have the sum of that number


Zero property of subtrction

Zero subtracted from any number will have the difference of that number


Even

A number that can be divided into two equal groups


Expanded Notation

A number written by its place value


Greater than >

The symbol used to compare two numbers when the larger number is on the left


Less <

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


Ordinal numbers

A number that tells the position or order


Place Value

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


Rounding

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


Standard form

A number written with one digit for each place value
