# Shared Flashcard Set

## Details

GMAT
Studying for the GMAT
53
05/07/2013

Term
 Integer
Definition
 Numbers we think of when we think of numbers; positive or negative.  Zero is an integer.
Term
 Positive x Positive = ?
Definition
 Positive
Term
 Positive x Negative = ?
Definition
 Negative
Term
 Negative x Negative
Definition
 Positive
Term
 Digits
Definition
 10 digits (0-9)
Term
 Name digit and unit in 246
Definition
 2 = Hundreds digit 4 = Tens digit 6 = Units/Ones digit
Term
 Name the digits and unit in 27.63
Definition
 2 = Tens digit 7 = Units/Ones digit 6 = Tenths digit 3 = Hundreths digit
Term
 Odd + Odd = ?
Definition
 Even
Term
 Even + Odd = ?
Definition
 Odd
Term
 Even + Even = ?
Definition
 Even
Term
 Odd x Odd = ?
Definition
 Odd
Term
 Even x Odd = ?
Definition
 Even
Term
 Even x Even = ?
Definition
 Even
Term
 Remainder
Definition
 The number that is left over at the end of division
Term
 Consecutive Integers
Definition
 Integers listed in order of increasing size without any integers missing in between.
Term
 Formula for consecutive integers
Definition
 n, n+1, n+2, n+3
Term
 Distinct numbers
Definition
 Numbers that different values (x and y)
Term
 Prime Number
Definition
 Positive integer that can be divided evenly only by two numbers: itself and 1. 2, 3, 5, 7, 11, 13 2 is the smallest and only even prime number Neither 0 or 1 is a prime number All prime numbers are positive (no negatives)
Term
 Divisible
Definition
 When a number can be evenly divided by another number = divisble
Term
 A number is divisible by two if...
Definition
 Its units digit can be divided evenly by two.    Example: 772 is divisible by 2.
Term
 A number is divisible by 3 if...
Definition
 The sum of its digits can be divided evenly by 3.   216 = 2+1+6= 9 9 is divisible by 3, so 216 is divisible by 3
Term
 A number is divisible by 4 if...
Definition
 The number formed by its last two digits is divisble by 4. 3,028 --> 28 28/4 = 8, so 3,028 is divisible by 4
Term
 A number is divisible by 5 if...
Definition
 Its final digit is either 0 or 5
Term
 A number is divisible by 6 if...
Definition
 It is divisble by both 2 and 3, the factors of 6. 318 is even, so it is divisble by 2. 318 = 3+1+8 = 12 12 is divisble by 3
Term
 4 over 0
Definition
 undefined
Term
 0 over 4
Definition
 0
Term
 Factor
Definition
 A number is a factor of another number if it can be divided evenly into that number.    Factors of 15 = 1,3,5,15
Term
 Multiple
Definition
 A number (x) is considered to be a multiple of another number (y) if y times another integer equals x.   15 is a multiple of 3, since you can multiple 3x5   I would consider this like a "product" of a number "Factors are few, multiples are many"
Term
 Absolutle value
Definition
 Distance between a number and zero Always postive -5 = 5 6 = 6 Expressed as a the number sandwiched between two lines l6l
Term
 <
Definition
 Less than
Term
 >
Definition
 Greater than
Term
 Best strategy for answering data sufficiency
Definition
 Look at one statement at a time and determine whether you can crack that statement with the information provided.
Term
Definition
 Sum
Term
 The result of subtraction
Definition
 Difference
Term
 The result of multiplication
Definition
 Product
Term
 Result of division
Definition
 Quotient
Term
 In the expression x², the little two is called the
Definition
 exponent (Raising to a power)
Term
 Square root of four is
Definition
 2x2 = 2
Term
 Order of arithmetic operations
Definition
 Please  - Parentheses Excuse - Exponents My       - Multiplicaiton Dear    - Division Aunt    - Addition Sally    - Subtraction
Term
 Associative Law
Definition
 When you are adding or multiplying a series of numbers, you can group or regroup the numbers any way you like.
Term
 Distributive Law
Definition
 The Distributive Law means that you get the same answer when you multiply a number by a group of numbers added together as when you do each multiplication separately. a(b+c) = ab + ac
Term
 If a problem gives you information in "factored form", i.e. a(b+c), you should...
Definition
 Distribute it immediately
Term
 If a problem gives you information in "distributed form", i.e. ab + ac), you should...
Definition
 Factor it
Term
 Fraction
Definition
 Another way of expressing division.  1 over 2 = 1 divided by 2
Term
 Numerator
Definition
 Top number in a fraction
Term
 Denominator
Definition
 Bottom number in a fraction
Term
 Important way to think of a fraction...
Definition
 Part/Whole 7/10 = 7 parts out of a total of 10 parts
Term
 Logic for adding and subtracting fractions with the same demonitor
Definition
 Add: Simply add the nemerators and place them over the common denominator   1/7 + 5/7 = (1+5)/7 = 6/7
Term
 First thing you must do when adding or subtracting two or more fractions with different denominators
Definition
 You must get them to all have the same denominator
Term
 How do you make different denominators the same
Definition
 Multiple the numerator and denominator of each fraction by a number that will give it a denominator in common with the others   1/2 + 2/3 = 1/2 * 3/3 + 2/3 * 2/2 3/6 + 4/6 = 7/6
Term
 How to multiply fractions
Definition
 Just multiply the numerators and put the product over the product of the denominators   2/3 * 6/5 Just multiple 2*6 = 12 3*5 = 15 12/15
Term
 How do you reduce fractions?
Definition
 Find a factor of both the numerator and the denominator.   12/15 4*3 = 12 5*3 = 15 Remove the number in common (3) and you just reduced your fraction to 4/5
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