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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. R²
when finding a solution set
consistent lines
diameter of circle
x>y

2. The percent increase from x to y (y>x)
properties of a square
even
acute angle
(y-x/x)100

3. The sum of the interior angles is
180 degrees
xy< 0
x>y
hexagon

4. x < y or y> x
x - y
x is less than y
reflex angle
properties of a rhombus

5. When the elements of a set are ordered pairs
relation
belongs to
all acute angles are equal and all obtuse angles are equal
x<0 and z=x+y

6. Any integer is divisible by 8 if
a+b+d=c+d
if two sets have no elements in common
obtuse angle
the last three numbers are divisible by 8

7. All sides are equal and all of whose angles are equal. 1. can be inscribed in a circle and can be circumscribed about another circle. 2. each angle is equal to the sum of the angles divided by the number of sides 180(n-2)°/n.
regular polygon properties
±vx
(x/100)m= n
midpoint of a line segment joining 2 parts

8. Is always a right angle.
(x-y/x)100
y angle< x angle
x²-2xy+y²
angle inscribed in semicircle

9. 1/y-1/x x -y ? 0
x-y/xy
right triangle
cube
straight angle

10. x > y or y< x
x is greater than y
vertical angles
angle bisector
x percent

11. Product of two odd numbers is
x²-2xy+y²
odd
medians of a triangle
trapezoid

12. Sin 30°
angle
the sum of parts
360 degrees
1/2

13. 9-40-41
right triangle
equilateral triangle
always positive or zero
angle a and angle b = angle d

14. x>0 and y>0 or x<0 and y<0
xy>0
never divide by zero
the third side
polygon

15. 1/2d
diameter of circle
circle
radius of a circle
xy + xz

16. ? if a side is equal to b side then - the opposite corresponding angles are
equal
x + y
simultaneous equations in 2 unknowns
finding the union of sets

17. Any integer is divisible by 4 - if
inconsistent lines
parallel
the last two digits of the number make a number that is divisible by 4
the last digit is either 0 or 5

18. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
midpoint of a line segment joining 2 parts
1/2
vertical angles
x%

19. The sume of x and y
3.16
approx square roots
x + y
y angle< x angle

20. The distance between two parallel lines or from a point to a line always means
slope of a line joining two points
triangle or straight line
the perpendicular distance
times

21. x/100
approx square roots
x percent
right triangle
angle bisector

22. (amount of increase/original amount) x 100
similar triangles
the percent of increase
b is the y-intercept
angle a and angle b = angle d

23. A/A¹ = B/B¹= C/C¹
a relation is a function
similar triangles
(x-y/x)100
the third side

24. 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.
1.7
diameter
central angle
y angle< x angle

25. A+b=c+ d=d
the square of x
reflex angle
implies
a+b+d=c+d

26. | |
xy
parallel
approx products
Axioms

27. If b²-4ac < 0 - there are
central angle
v(x2-x1)²+ (y2-y1)²
x + y
no solutions

28. A<x and x<b
right triangle
the last two digits of the number make a number that is divisible by 4
similar triangles
a<x<b

29. Ax= by + C
diameter of circle
0 - 2 - 4 - 6 - 8
rectangle
simultaneous equations in 2 unknowns

30. 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
coinciding lines
similar triangles
simultaneous equations
probability

31. If two lines are parallel - the slope of one is
equal to the slope of the other
odd
null set
xy>0

32. All three sides and all three angles are equal
n= mx/100
acute angle
the sum of parts
equilateral triangle

33. V2/2- v2/2 - 1 (90-45-45)
isosceles triangle
diameter of circle
x%
the third side

34. Wx>wy
radius of a circle
w>0 and x>y
±vx
polygon

35. C²= a²+b² and angle x and y are equal to 90°
right triangle
coinciding lines
commutative axiom of addition and multiplication
properties of parallelograms

36. If the each element of the domain occurs only once as a FIRST component
the last three numbers are divisible by 8
x-y
a relation is a function
expression of an odd number

37. Sum of an odd and an even number is
(x/100)m= n
odd
b is the y-intercept
angle

38. Intersect at only one point - the point is the only solution to the pair of equations
a<x<b
radius of a circle
consistent lines
solution set

39. Is - as - was - has - cost
equals
equilateral triangle
properties of a square
x-y/xy

40. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
relation
pythagorean theorem
b+d>c+e
inconsistent lines

41. Is a rectangular rhombus 1. all four sides are equal 2. opposite pairs of sides are parallel 3. diagonals are equal - are perpendicular to each other - and bisect each other. 4. all the angles are right triangles 5. diagonals intersect the vertices a
x>y and y>z
properties of a square
the sum of parts
is a subset of

42. ?
distributive axiom
the third side
and
isosceles triangle

43. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
find the intersection of two sets
vertical angles
or
negative reciprocal of the other

44. The percent decrease from x to y ( y<x)
if the last digit of the number is 0 -2 -4 -6 -8
semicircle
(x-y/x)100
equilateral triangle

45. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
trapezoid
similar triangles
the square of x
a relation is a function

46. xw> yz
regular polygon properties
x>y>0 and w>z>0
consistent lines
hemisphere

47. 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)
semicircle
combinations
equals
properties of parallelograms

48. In a triangle - the greatest angles lies
opposite the greatest side
equal to the sum of the measures of the remote exterior angles
a set
1

49. x + (n/100)x
n percent greater than x
perpendicular bisectors
right angle
or

50. 2k + 1
circle
angle inscribed in semicircle
expression of an odd number
x>y and w>z