Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Math Vocabulary RCEM

an angle that is less than 90 degrees acute angle
an angle that is more than 90 degrees and less than 180 degrees obtuse angle
what we measure angles in degrees
a number that has more than two factors composite
a number found by dividing the sum of two or more addends by the number of addends, often referred to as the average mean
the value of a digit three places to the right of the decimal thousandths
a triangle with all sides the same length equilateral triangle
a triangle that has at least 2 congruent sides isosceles triangle
a triangle whose largest angle measures greater than 90 degrees obtuse triangle
a triangle that has one 90 degree angle right triangle
a triangle that has no congruent sides scalene triangle
the number of cubic units it takes to fill a solid volume
a whole number greater than 1 that has exactly 2 factors, 1 and itself. prime number
Number that cannot be divided by 2. odd Number
Number that is divisable by 2. even Number
The chance that a particular outcome will occur. probability
has four sides and four angles quadrilateral
value of a digit one place to the right of the decimal tenths
having a probability less than one half unlikely
To reduce a fraction is to put it in ________ form simplest
Two fractions that are equal in value are: equivalent
To find the average is to also find the what? mean
The number that occurs most often in a set of numbers is the what? mode
A fraction that has a larger number on top (numerator) is called an ________ fraction improper
What is the name of the number above the fraction bar? numerator
What is the name of the number below the fraction bar? denominator
What math tool do you use to measure the degrees in an angle? protractor
On a stem and leaf plot digits in the ones place are known as the what? leaves
What do you call a rectangle with all sides the same length? square
A what moves a figure up, down, or over? ** slide ** translation
A what produces a mirror image of figure? ** flip ** reflection
A what rotates a figure around a point? ** turn ** rotation
What is another term for average or mean? fair share
The MODE is the number that occurs __________ ________. most often
An event with a no chance of occurring has a probability of zero
The answer to a division problem quotient
Mean, median, and mode are all measures of: center
Range is a measure of ___________ (or spread) variation
The distance all the way around a circle is called the: circumference
A line that goes all the way through a circle, through the center, is called the: diameter
For a circle, the line from the center to the outside edge is called the: radius
Any line that has both of it's endpoints on the circle is called a: chord
The distance around a polygon is called the: perimeter
The amount of flat surface inside a polygon (measured in square units) is called the: area
The amount of space a 3-dimentional shape takes up is called the: volume
If an event has a probability between 1/2 and 1, then it is: likely
If an event has a probability of 1, it is: certain
If an event has a probability of 0, it is: impossible
Another word for mean or average: fair share
Created by: MrLittle5
Popular Math sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards