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GRE Math Strategies

Subjects : gre, math

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. The product of an odd number of negative numbers is
reflex angle
negative
1.4
two solutions

2. x > y or y< x
permutations
straight angle
obtuse angle
x is greater than y

3. Set of solutions to an equation
altitude of a triangle
y angle< x angle
inconsistent lines
solution set

4. 5-12-13
any variable
right triangle
it is also divisible by 2 and 3
rectangle

5. V2/2- v2/2 - 1 (90-45-45)
medians of a triangle
negative
isosceles triangle
x + y

6. x less than y
belongs to
y-x
vertical angles
diameter

7. Sin 45°
simultaneous equations in 2 unknowns
x-y/xy
v2/2 or .71
acute angle

8. A chord through the center of the circle
a relation is a function
w<0 and x>y
n percent greater than x
diameter

9. A subset of a set is
right triangle
any variable
a set
standard deviation

10. | |
percent
parallel
xy
angle bisector

11. ?
never divide by zero
y-x
area of a triangle
and

12. Any integer is divisible by 4 - if
the last two digits of the number make a number that is divisible by 4
x²-2xy+y²
simultaneous equations
expression of an even number

13. 1. determine a rough approximation of the square root of the number. 2. divide the number by all the primes that are less than the approx square root. If the number is not divisible by ANY of the these primes - then it is prime. If it IS divisible -
x percent
determining if a number is prime
the sum of parts
isosceles triangle

14. (sum of individual quantities or measures/ total number of quantities or measures)
average
xy>0
rectangular solid
angle bisector

15. Product of an even number and any other number is
hexagon
even
domain of a relation
right triangle

16. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
hemisphere
x + y
isosceles triangle
angle bisector

17. Is - as - was - has - cost
x percent
xy
±vx
equals

18. Wx>wy
v2/2 or .71
the percent of increase
w>0 and x>y
x and y

19. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
x²-2xy+y²
the last two digits of the number make a number that is divisible by 4
Axioms
altitude of a triangle

20. The product of an even number of negative numbers is
positive
the percent of increase
expression of an even number
right triangle

21. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
semicircle
acute angle
slope of a line joining two points
right triangle

22. Two tangents to a circle from the same point outside of the circle are always
x and y
equal
implies
determining if a number is prime

23. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
associative axiom of addition and multiplication
approx square roots
right triangle
perpendicular bisectors

24. If the each element of the domain occurs only once as a FIRST component
0 - 2 - 4 - 6 - 8
the percent of decrease
a relation is a function
y angle< x angle

25. Any integer is divisible by 8 if
greater than c
x - y
w>0 and x>y
the last three numbers are divisible by 8

26. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
equilateral triangle
b is the y-intercept
supplementary angles
find the intersection of two sets

27. x < y or y> x
n percent less than x
x is less than y
xy< 0
when finding a solution set

28. 8-15-17
tangent
approx products
pythagorean theorem
right triangle

29. x/100
a side< b side
relation
x percent
right triangle

30. xn<0 if n is odd and xn>0 if n is even
x<0
times
all acute angles are equal and all obtuse angles are equal
slope of a line joining two points

31. The sume of x and y
x + y
v2/2 or .71
0 - 2 - 4 - 6 - 8
y angle< x angle

32. 3(4+1)= 3 x 4 + 3 x 1
when finding a solution set
x>y>0 and w>z>0
distributive axiom
no solutions

33. A¹
angle bisector
a
standard deviation
3.16

34. x more than y
properties of a rhombus
hemisphere
belongs to
x + y

35. 9-40-41
determining if a number is prime
all acute angles are equal and all obtuse angles are equal
x-y
right triangle

36. Is always a right angle.
is a subset of
180 degrees
x²+ 2xy+y²
angle inscribed in semicircle

37. Write down every member in one or both of the sets - the union of two sets is a new set. the union of set A and B is written as A?B
odd
finding the union of sets
0 - 2 - 4 - 6 - 8
similar triangles

38. If b²-4ac < 0 - there are
trapezoid
no solutions
equilateral triangle
xy-xz

39. 2k + 1
expression of an odd number
properties of a rectangle
360 degrees
y-x

40. ?
right triangle
x<0
odd
angle

41. Then their intersection is the null or empty set - written as Ø
sphere
if two sets have no elements in common
if the last digit of the number is 0 -2 -4 -6 -8
a+b+d=c+d

42. A/A¹ = B/B¹= C/C¹
altitude of a triangle
similar triangles
itself
0 - 2 - 4 - 6 - 8

43. If b²-4ac > 0 there are
x%
two solutions
or
perpendicular

44. 1/2d
radius of a circle
x and y
reflex angle
null set

45. x older than y
negative
vertical angles
x + y
the sum of its digits is divisible by 3

46. M=number of favorable ways n= total number of ways (two events occurring is the prob of the first times the prob of the second)
probability
y intercept
right triangle
even

47. The measure of an interior angle is
x-y
positive
vertical angles
equal to the sum of the measures of the remote exterior angles

48. N is what % of m
regular polygon properties
tangent
n= mx/100
x percent

49. Between 180° and 360°
isosceles
reflex angle
inconsistent lines
combinations

50. Any integer is divisible by 5 if
angle inscribed in semicircle
chord
similar triangles
the last digit is either 0 or 5