# Shared Flashcard Set

## Details

Vocabulary
Selected Topics
79
Mathematics
Not Applicable
05/18/2005

Term
 integer
Definition
 a number with nothing (other than zeroes) to the right of the decimal point
Term
 rational number
Definition
 a number that can be written as a fraction of integers
Term
 how to tell if a decimal number is a rational number or an irrational number
Definition
 "If the decimal number stops, it is rational. If it ends in a sequence of numbers that repeat forever, it is rational. Otherwise, it is irrational."
Term
 >
Definition
 greater than
Term
 <
Definition
 less than
Term
 absolute value
Definition
 the distance a number is from 0 -- never negative
Term
 how to indicate a repeating decimal
Definition
 draw a line over the part of the number that repeats.
Term
 dividend
Definition
 "in a division problem, the number being divided"
Term
 divisor
Definition
 "in a division problem, the number that the dividend is being divided by"
Term
 prime number
Definition
 an integer greater than 1 that is only divisible by 1 and itself
Term
 composite number
Definition
 the product of two or more prime numbers
Term
 how to tell if an integer is divisible by 2
Definition
 "Look at the ones digit. If it is 0, 2, 4, 6 or 8, then the number is divisible by 2."
Term
 how to tell if an integer is divisible by 3
Definition
 "Add the digits in the number. If this sum is divisible by 3, then the number is divisible by 3."
Term
 how to tell if an integer is divisible by 4
Definition
 "Divide the last two digits by 2. If this gives an even number, then the original number is divisible by 4."
Term
 how to tell if an integer is divisible by 5
Definition
 "Look at the ones digit. If it is 0 or 5, the number is divisible by 5."
Term
 how to tell if an integer is divisible by 6
Definition
 "Add the digits in the number. If this sum is divisible by 3, and the original number ends in 0, 2, 4, 6 or 8, the original number is divisible by 6."
Term
 how to tell if an integer is divisible by 9
Definition
 "Add the digits in the number. If this sum is divisible by 9, then the number is divisible by 9."
Term
 how to tell if an integer is divisible by 1
Definition
 "Look at the ones digit. If it is 0, the number is divisible by 10."
Term
 numerator
Definition
 the top number in a fraction
Term
 denominator
Definition
 the bottom number in a fraction
Term
 how to tell whether two fractions are equal
Definition
 "Multiply the numerator of the first by the denominator of the second, and then multiply the denominator of the first by the numerator of the second. If these two numbers are equal, the two fractions are equal."
Term
 improper fraction
Definition
 a fraction in which the numerator is larger than the denominator
Term
 reciprocal
Definition
 "the multiplicative ""opposite"" of a number; in other words, what you need to multiply a number by to get 1"
Term
 how to divide fractions
Definition
 multiply the first fraction by the second fraction's reciprocal
Term
 percentage
Definition
 a fraction in which the denominator is 100
Term
 proportion
Definition
 an equation of two ratios or fractions
Term
 "1 meter, in inches"
Definition
 1 m = 39.37 in.
Term
 "1 inch, in cm."
Definition
 1 in. = 2.54 cm
Term
 "1 mile, in feet"
Definition
 "1 mi. = 5,280 ft."
Term
 "1 mile, in meters"
Definition
 "1 mi. = 1,609 m."
Term
 "1 meter, in cm"
Definition
 1 m = 100 cm
Term
 "1 meter, in mm"
Definition
 1 m = 1000 mm
Term
 "1 cm, in mm"
Definition
 1 cm = 10 mm
Term
 "1 yard, in feet"
Definition
 1 yd. = 3 ft.
Term
 "1 foot, in inches"
Definition
 1 ft. = 12 in.
Term
 "1 liter, in cubic cm."
Definition
 "1 l = 1,000 cu. cm."
Term
 "1 gallon, in quarts"
Definition
 1 gal. = 4 qts.
Term
 "1 quart, in pints"
Definition
 1 qt. = 2 pts.
Term
 "1 pint, in cups"
Definition
 1 pt. = 2 C
Term
 "1 cup, in fluid ounces"
Definition
 1 C = 8 fl. oz.
Term
 centi-
Definition
 the prefix that means 1/100
Term
 deci-
Definition
 the prefix that means 1/10
Term
 deca-
Definition
 the prefix that means 1/100
Term
 milli-
Definition
 "the prefix that means 1/1,000"
Term
 micro-
Definition
 "the prefix that means 1/1,000,000"
Term
 kilo-
Definition
 "the prefix that means 1,000"
Term
 mega-
Definition
 "the prefix that means 1,000,000"
Term
 the temperature at which water freezes on the Fahrenheit scale
Definition
 32° F
Term
 the temperature at which water freezes on the Celsius scale
Definition
 0° C
Term
 the temperature at which water boils on the Fahrenheit scale
Definition
 212° F
Term
 the temperature at which water boils on the Celsius scale
Definition
 100° C
Term
 the formula for converting a Celsius temperature to Fahrenheit
Definition
 F = (9/5)C + 32
Term
 the formula for converting a Fahrenheit temperature to Celsius
Definition
 C = 5/9 (F-32)
Term
 "1 pound, in ounces"
Definition
 1 lb. = 16 oz.
Term
 "1 ton, in lbs."
Definition
 "1 ton = 2,000 lbs."
Term
 "1 kilogram, in lbs."
Definition
 1 kg = 2.2 lbs.
Term
 polygon
Definition
 "a closed, two-dimensional shape, formed by straight line segments that do not cross"
Term
 sum of the angles of a polygon with n sides
Definition
 180(n-2)
Term
 pentagon
Definition
 a poygon with 5 sides
Term
 hexagon
Definition
 a poygon with 6 sides
Term
 heptagon
Definition
 a poygon with 7 sides
Term
 octagon
Definition
 a poygon with 8 sides
Term
 nonagon
Definition
 a poygon with 9 sides
Term
 decagon
Definition
 a poygon with 10 sides
Term
 plane
Definition
 an imaginary flat surface that extends forever in all directions.
Term
 congruent
Definition
 having the same size and shape
Term
 perimeter
Definition
 the total length of the sides of a polygon
Term
 area
Definition
 the amount of surface a two-dimensional shape covers
Term
 bisect
Definition
 to divide an angle or shape exactly in half
Term
 line
Definition
 an object
Term
 ray
Definition
 a portion of a line that has one endpoint
Term
 line segment
Definition
 a portion of a line that has two endpoints.
Term
 parallel
Definition
 the description for lines that go in the same direction and never meet.
Term
 perpendicular
Definition
 meeting at a 90° angle
Term
 right angle
Definition
 an angle that measures 90°
Term
 acute angle
Definition
 an angle that measures less than 90°
Term
 obtuse angle
Definition
 an angle that measures more than 90°
Term
 straight angle
Definition
 an angle that measures 180°
Supporting users have an ad free experience!