Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
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

8th Math Mod 1

Real Numbers

like terms two or more terms that have the same variable raised to the same power. Ex. In the expression 3a + 5b +12a, 3a and 12a are like terms.
perfect square a square of a whole number
principal square root the nonnegative square root of a number
rational number any number that can be expressed as a ratio of two integers. EX. 6 can be expressed as 6/1 and 0.5 can be expressed as 1/2.
real number a rational or irrational number.
repeating decimals a decimal in which one or more digits repeat infinitely.
integers the set of whole numbers and their opposites. Expressed symbolically {...-3,-2,-1,0,1,2,3...}
whole number the set of natural numbers and zero. Expressed symbolically {0,1,2,3,...}
irrational numbers a number that cannot be expressed as a ratio of two integers or as a repeating or terminating decimal. EX. π, √2
Created by: ashaver