GRE Quantitative Flashcards

1
Q

sum

A

addition

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2
Q

difference

A

subtraction

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3
Q

product

A

multiplication

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4
Q

quotient

A

division

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5
Q

the product of 0 and any number is

A

0

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6
Q

the product of an even number of negative factors is

A

positive

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7
Q

the product of an odd number of negative factors is

A

negative

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8
Q

integers are

A

whole numbers

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9
Q

How would you solve:

“How many positive integers less than 100 have a remainder of 3 when divided by 7?”

A

divide:
100/7=14.285714
the answer is 14

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10
Q

what are the synonyms for divisible

A

divisor, factor, multiple

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11
Q

what are the first ten primes

A

2,3,5,7,11,13,17,19,23,29

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12
Q

every integer greater than 1 that is not a prime can be written as

A

a product of primes

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13
Q

if two integers are both even or both odd, their sum and difference are

A

even

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14
Q

if one integer is even and the other is odd, their sum and difference are

A

odd

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15
Q

2^5 x 2^3 =

A

2^5+3

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16
Q

2^5 / 2^3 =

A

2^5-3

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17
Q

b^m x b^n =

A

b^m+n

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18
Q

b^m/b^n =

A

b^m-n

19
Q

(b^m)^n

A

b^mn

20
Q

b^m x c^m =

A

(bc)^m

21
Q

if 3^a x 3^b = 3^100, what is the average of a and b?

A

50

22
Q

for any positive integer n: 0^n =

A

0

23
Q

for any positive integer n: if a is positive then a^n is

A

positive

24
Q

for any positive integer n: if a is negative and n is even, then a^n is

A

positive

25
Q

for any positive integer n: if a is negative and n is odd, then a^n is

A

negative

26
Q

Quantity A: (-13)^10

Quantity B: (-13)^25

A

A is greater

27
Q

the square root of ab is equal to

A

the square root of a x the square root of b

28
Q

the square root of a/b is equal to

A

the square root of a / square root of b

29
Q

for any numbers a and b: a >b means that a-b is

A

positive

30
Q

for and numbers a and b: a<b></b>

A

negative

31
Q

multiplying or dividing an inequality by a negative number

A

reverses the inequality

32
Q

even + even =

A

even

33
Q

odd + odd =

A

even

34
Q

even + odd =

A

odd

35
Q

even x even =

A

even

36
Q

odd x odd =

A

odd

37
Q

even x odd =

A

even

38
Q

an integer is divisible by 3 if the

A

sum of its digits is divisible by 3

39
Q

when one fraction is multiplied by another fraction, the product is

A

smaller than either of the original fractions

40
Q

any number raised to 0 is always

A

1

41
Q

any number without an exponent is understood to have an exponent of

A

1

42
Q

each angle of an equilateral triangle is

A

60 degrees

43
Q

in an isosceles triangle, two of the angles must be

A

equal

44
Q

in any triangle, the longest side is opposite

A

the largest angle