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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. 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)
equilateral triangle
belongs to
trapezoid
combinations

2. 1/y-1/x x -y ? 0
properties of a rectangle
x-y/xy
solution set
cylinder

3. 5-12-13
right triangle
0 - 2 - 4 - 6 - 8
semicircle
hemisphere

4. x more than y
reflex angle
3.16
x + y
radius

5. The sume of x and y
x + y
any variable
reflex angle
the sum of its digits is divisible by 3

6. A line that is perpendicular to a radius and that passes through only one point of the circle.
x²-2xy+y²
tangent
pythagorean theorem
inverse of a relation

7. All odd numbers end in the digits of
b+d>c+e
equal to the sum of the measures of the remote exterior angles
1 - 3 - 5 - 7 - 9
radius of a circle

8. The lines that divide each angle of the triangle into two equal parts. these lines meet in a point that is the center of a circle inscribed in the triangle.
circle
the sum of parts
angle bisector
1.4

9. A°
x%
1
x<0 and z=x+y
the sum of parts

10. ?
±vx
implies
y-x
if the last digit of the number is 0 -2 -4 -6 -8

11. V10
x<0
associative axiom of addition and multiplication
3.16
relation

12. x>z
simultaneous equations in 2 unknowns
x-y/xy
x>y and y>z
right triangle

13. If ?B > ?A - then
consistent lines
equals
then side b > side a
implies

14. Wx>wy
w>0 and x>y
quadratic equations
slope of a line joining two points
solution set

15. A/A¹ = B/B¹= C/C¹
w<0 and x>y
similar triangles
the third side
n= mx/100

16. x/100
w<0 and x>y
polygon
one solution
x%

17. The percent decrease from x to y ( y<x)
medians of a triangle
vertical angles
(x-y/x)100
belongs to

18. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
vertical angles
x<0 and z=x+y
1.4
n percent greater than x

19. 5+3= 3+5 and 5 x 3= 3 x 5
x<0 and z=x+y
a<x<b
x>y>0 and w>z>0
commutative axiom of addition and multiplication

20. xw> yz
average
x>y>0 and w>z>0
obtuse angle
w<0 and x>y

21. V2
radius of a circle
supplementary angles
1.4
obtuse angle

22. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
isosceles triangle
22/7 or 3.14
even
±vx

23. y years from now
tangent
then side b > side a
+y
no solutions

24. 1-1-v2 (90-45-45)
even
equal to the sum of the measures of the remote exterior angles
right triangle
x - y

25. Product of an even number and any other number is
always positive or zero
x is less than y
right triangle
even

26. The product of x and y
isosceles
v2/2 or .71
xy
x<0 and z=x+y

27. ?
is a subset of
Axioms
x>y and w>z
y angle< x angle

28. x/100
x percent
standard deviation
when finding a solution set
equilateral triangle

29. ?
supplementary angles
a relation is a function
or
equal

30. 1. square all choices given 2. select the closes choice that is too large and the one that is too small. 3. find the average of the two choices (not of the squares) 4. square the average - if it is greater than the original number - choose the lower
right triangle
approx square roots
acute angle
chord

31. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
equal
similar triangles
domain of a relation
x - y

32. Ax= by + C
simultaneous equations in 2 unknowns
combinations
the percent of increase
negative

33. Intersect at only one point - the point is the only solution to the pair of equations
consistent lines
y intercept
positive
chord

34. The distance between two parallel lines or from a point to a line always means
square
c x (john'S age)
the perpendicular distance
1 - 3 - 5 - 7 - 9

35. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
tangent
find the intersection of two sets
360 degrees
expression of an odd number

36. (x-y)(x-y) = (x-y)²
x²-2xy+y²
all acute angles are equal and all obtuse angles are equal
(y-x/x)100
quadratic equations

37. ?
Axioms
angle inscribed in semicircle
±vx
angle

38. In transversals
all acute angles are equal and all obtuse angles are equal
properties of a rhombus
x-y
midpoint of a line segment joining 2 parts

39. 90°
diameter
when finding a solution set
right angle
altitude of a triangle

40. (x+y)(x+y)= (x+y)²
x + y
the third side
x²+ 2xy+y²
isosceles triangle

41. Any integer is divisible by 10 - if
x<0
the last digit is 0
x + y
1

42. ? if a side < b side - then
or
(y-x/x)100
and
y angle< x angle

43. Area = ?r² circumference(perimeter)= 2?r
vertical angles
n percent less than x
circle
radius of a circle

44. x(y+z)
xy + xz
sphere
360 degrees
approx sums

45. The increase from x to y
y-x
inscribed angle
properties of a rhombus
w>0 and x>y

46. Is always a right angle.
the percent of decrease
angle inscribed in semicircle
diagonal of a square
is a subset of

47. C²= a²+b² and angle x and y are equal to 90°
negative
equal
right triangle
y-x

48. Product of two odd numbers is
0 - 2 - 4 - 6 - 8
expression of an odd number
cylinder
odd

49. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
greater than c
x>y and w>z
all acute angles are equal and all obtuse angles are equal
pythagorean theorem

50. 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.
right triangle
perpendicular bisectors
simultaneous equations
xy-xz