Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
45 Cards in this Set
 Front
 Back
Density Property 
The property that states that because any two real numbers, there is always another real number 

Scale 
The ratio between two sets of measurements. (Example: 1 cm : 5 mi) 

Irrational NUmbers 
A number that cannot be expressed as a ratio of two integers or as a repeating or terminating decimal. 

Scale drawing 
A drawing that uses a scale to make an object smaller than or larger than the real object 

Rational NUmbers 
Any number that can be expressed as a ratio of two numbers. 

Similar 
Figures with the same shape but not neccaryly the same size 

Perfect square 
square of a whole number 

cross product 
THe product of numbers on the diagonal when comparing two ratios. 

Real number 
a rational or irrational numnber 

Unit price 
a unit rate used to compare prices 

reciprocal 
the upside down of a fraction 

unit rate 
a rate in which the second quantity in the caparison is one unit 

percent 
these are ratios that compare a number to 100 

rate 
a ratio that compares 2 quantities measured in different units 

Percent change 
the ratio of the amount of change to the original amount 

proportion 
an equation that states the 2 ratios are equal 

commission 
a fee paid to a person who makes a sale 

equivalent ratio 
ratios that name the same comparison 

commission rate 
this is usually a percent of the selling price 

ratio 
a comparison of 2 quanities by division 

sales tax 
the tax on the sale of an item or service 

rate of interest 
the percent charged or earned on the principal 

withholding tax 
tax deducted from a person's earnings as an advance payment of income tax 

principal 
amount of money borrowed or invested 

simple interest 
the money you owe on an amount of money u borrowed 

algebracic expression 
an expression that contains at least one variable 

scientific notation 
a method of writing very large or very small numbers by using powers of 10 

order of operations 
the rules to follow when evaluating an expression or equation 

exponential form 
a number is in this form when it is written with a base and an exponent 

evaluate 
means to solve 

base 
when a number is raised to a power, the number that is used as a factor is this 

assocaitive property 
the property that states that the grouping can change places but the sun or product stays the same 

absolute value 
the distance od a number from zero on a number line 

commmunative property 
the property that states the number can change places but the sum or product stays the same 

opposite 
the numbers that are = distance from zero on a number ine 

distrubutive property 
the property that states if you mulpitpy a sun by the number outside by inside 

integer 
the set whole numbers including 0 and their opposites 

exponent 
the number that indicates how many times the base is used as a factor 

factor 
numbers that are being multiplied together 

numerical expression 
an expression that contains only numbers and operations 

difference 
the answer to subtracting problem 

variable 
a letter or symbol that means a number 

quotient 
the answer to a division problem 

sum 
the answer to an addition problem 

product 
the answer to a multiplication problem 