GRE Quantitative Flashcards
sum
addition
difference
subtraction
product
multiplication
quotient
division
the product of 0 and any number is
0
the product of an even number of negative factors is
positive
the product of an odd number of negative factors is
negative
integers are
whole numbers
How would you solve:
“How many positive integers less than 100 have a remainder of 3 when divided by 7?”
divide:
100/7=14.285714
the answer is 14
what are the synonyms for divisible
divisor, factor, multiple
what are the first ten primes
2,3,5,7,11,13,17,19,23,29
every integer greater than 1 that is not a prime can be written as
a product of primes
if two integers are both even or both odd, their sum and difference are
even
if one integer is even and the other is odd, their sum and difference are
odd
2^5 x 2^3 =
2^5+3
2^5 / 2^3 =
2^5-3
b^m x b^n =
b^m+n
b^m/b^n =
b^m-n
(b^m)^n
b^mn
b^m x c^m =
(bc)^m
if 3^a x 3^b = 3^100, what is the average of a and b?
50
for any positive integer n: 0^n =
0
for any positive integer n: if a is positive then a^n is
positive
for any positive integer n: if a is negative and n is even, then a^n is
positive
for any positive integer n: if a is negative and n is odd, then a^n is
negative
Quantity A: (-13)^10
Quantity B: (-13)^25
A is greater
the square root of ab is equal to
the square root of a x the square root of b
the square root of a/b is equal to
the square root of a / square root of b
for any numbers a and b: a >b means that a-b is
positive
for and numbers a and b: a<b></b>
negative
multiplying or dividing an inequality by a negative number
reverses the inequality
even + even =
even
odd + odd =
even
even + odd =
odd
even x even =
even
odd x odd =
odd
even x odd =
even
an integer is divisible by 3 if the
sum of its digits is divisible by 3
when one fraction is multiplied by another fraction, the product is
smaller than either of the original fractions
any number raised to 0 is always
1
any number without an exponent is understood to have an exponent of
1
each angle of an equilateral triangle is
60 degrees
in an isosceles triangle, two of the angles must be
equal
in any triangle, the longest side is opposite
the largest angle
