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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. x younger than y
trapezoid
no solutions
obtuse angle
x - y

2. x(y-z)
xy-xz
area of a triangle
b is the y-intercept
the sum of parts

3. What % of m is n
the square of x
expression of an even number
equal to the slope of the other
(x/100)m= n

4. The decrease from x to y
x-y
always positive or zero
the sum of parts
v2/2 or .71

5. If an equation can be put into the form y= mx +b - then
it is also divisible by 2 and 3
b is the y-intercept
a<x<b
tangent

6. The difference between x and y
angle
right triangle
isosceles
x - y

7. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
if two sets have no elements in common
x>y and w>z
find the intersection of two sets
y-x

8. Between 90° and 180°
a<x<b
then side b > side a
consistent lines
obtuse angle

9. Wx<wy
equal angles
w<0 and x>y
tangent
circle

10. Two tangents to a circle from the same point outside of the circle are always
rectangle
equal
properties of parallelograms
y-x

11. Volume=lwh surface area= 2wh + 2hl + 2lw
x²-2xy+y²
rectangular solid
positive
equilateral triangle

12. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
(y-x/x)100
properties of a square
perpendicular
midpoint of a line segment joining 2 parts

13. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.
a<x<b
polygon
x is less than y
x²-y²

14. The sume of x and y
x + y
angle inscribed in semicircle
x>y
x%

15. N is what % of m
v(x2-x1)²+ (y2-y1)²
circle
simultaneous equations
n= mx/100

16. N= combinations taken (order does not matter) r= rate at a time nCr or C(n -r) = (n)!/(r)! (remember to cancel out common numbers)
finding the union of sets
right triangle
combinations
range of a relation

17. Then their intersection is the null or empty set - written as Ø
if two sets have no elements in common
right triangle
x>y
0 - 2 - 4 - 6 - 8

18. 1. round each number being added to one more place than it is being asked. 2. add the rounded numbers. 3. round off the sum to the desired number of places
equal to the sum of the measures of the remote exterior angles
x and y
finding the union of sets
approx sums

19. 2k + 1
one solution
expression of an odd number
right triangle
x<0 and z=x+y

20. x + y
y-x
x and y
angle bisector
w<0 and x>y

21. Area= s² perimeter= 4s
inconsistent lines
square
the sum of parts
x+y/xy

22. Sin 60°
odd
v3/2 or .87
+y
approx sums

23. 1. round the numbers being multiplied to one more place than it is being asked. 2. Multiply the rounded off numbers 3. round of product to desired number of places
x>y
percent
approx products
xy

24. Any line that connects two points on a circle.
(y-x/x)100
right angle
even
chord

25. 1-1-1 (60-60-60)
x intercept
equilateral triangle
perpendicular
regular polygon properties

26. 1-1-v2 (90-45-45)
x + y
find the intersection of two sets
opposite the greatest side
right triangle

27. Sin 45°
x and y
v2/2 or .71
expression of an odd number
x - y

28. The case where the two equations are equivalent (just two different forms of the same mathematical relation). Any point that satisfies either of the equations - automatically satisfies both
one solution
v3/2 or .87
coinciding lines
the perpendicular distance

29. Which - what
permutations
any variable
average
finding the union of sets

30. z>y
straight angle
diameter of circle
x<0 and z=x+y
when finding a solution set

31. Between 180° and 360°
reflex angle
isosceles triangle
one solution
right triangle

32. If two lines are parallel - the slope of one is
the last two digits of the number make a number that is divisible by 4
times
equal to the slope of the other
x>y

33. When two parallel lines are crossed by a third straight line (transversal) - then
central angle
combinations
right triangle
all acute angles are equal and all obtuse angles are equal

34. A¹
x is less than y
180 degrees
a
reflex angle

35. 3-4-5
sphere
a
right triangle
one solution

36. Angle whose sides are two radii of the circle. The vertex of this angle is the center of the circle. The number of degrees is equal to the amount of arc length that the radd intercept.
a side< b side
belongs to
b is the y-intercept
central angle

37. B>c+ d>e
b+d>c+e
properties of a rhombus
inverse of a relation
parallelogram

38. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
equilateral triangle
inscribed angle
inconsistent lines
1/2

39. Of
a side< b side
find the intersection of two sets
negative reciprocal of the other
times

40. Sin 30°
straight angle
finding the union of sets
x²-2xy+y²
1/2

41. Any integer is divisible by 6 if
1/2
right triangle
it is also divisible by 2 and 3
approx square roots

42. When the elements of a set are ordered pairs
odd
even
trapezoid
relation

43. 1/y-1/x x -y ? 0
equal
commutative axiom of addition and multiplication
coinciding lines
x-y/xy

44. Any number squared or raised to an even power is
±vx
even
x>y
always positive or zero

45. The product of x and y
it is also divisible by 2 and 3
the last digit is either 0 or 5
chord
xy

46. x>0 and y>0 or x<0 and y<0
if the last digit of the number is 0 -2 -4 -6 -8
inverse of a relation
xy>0
the percent of decrease

47. The percent decrease from x to y ( y<x)
is a subset of
if the last digit of the number is 0 -2 -4 -6 -8
(x-y/x)100
distributive axiom

48. Are the lines that bisect and are perpendicular to each of the three sides. The point where they meet is the center of the circumscribed circle.
v2/2 or .71
perpendicular bisectors
xy-xz
equal

49. The increase from x to y
y-x
y angle< x angle
one solution
if the last digit of the number is 0 -2 -4 -6 -8

50. 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)
x+y/xy
a?n
similar triangles
probability