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GRE Math Strategies

Subjects : gre, math

Instructions:

Answer 50 questions in 15 minutes.
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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. ?
diameter of circle
xy + xz
180 degrees
22/7 or 3.14

2. x +z > y+z
xy-xz
never divide by zero
area of a triangle
x>y

3. 9-40-41
right triangle
if the last digit of the number is 0 -2 -4 -6 -8
a?n
x is less than y

4. (x-y)(x-y) = (x-y)²
x²-2xy+y²
angle inscribed in semicircle
x+y/xy
reflex angle

5. Side a +side b of a ? is
vertical angles
perpendicular bisectors
properties of a square
greater than c

6. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
positive
right triangle
set
odd

7. When two parallel lines are crossed by a third straight line (transversal) - then
right triangle
w>0 and x>y
vertical angles
all acute angles are equal and all obtuse angles are equal

8. x(y-z)
circle
acute angle
xy-xz
determining if a number is prime

9. (amount of increase/original amount) x 100
vertical angles
the percent of increase
right triangle
the perpendicular distance

10. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}
when finding a solution set
perpendicular
x is less than y
x + y

11. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
the sum of its digits is divisible by 9
diameter of circle
approx sums
permutations

12. Diagonals divide into 6 equilateral triangles - the sides are equal to the sides of the ________. if inscribed in a circle - the length of each side is equal to the length of the radius of the circle.
hexagon
times
circle
angle inscribed in semicircle

13. ?
itself
x-y
vertical angles
implies

14. M= y2-y1/x2-x1
slope of a line joining two points
perpendicular
a relation is a function
triangle

15. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
360 degrees
combinations
n percent less than x
find the intersection of two sets

16. All even numbers end in the digits of
equal to the sum of the measures of the remote exterior angles
0 - 2 - 4 - 6 - 8
sphere
angle a and angle b = angle d

17. ? if a side is equal to b side then - the opposite corresponding angles are
circle
equal
y-x
y angle< x angle

18. Product of an even number and any other number is
pythagorean theorem
the sum of its digits is divisible by 9
1 - 3 - 5 - 7 - 9
even

19. Sum of an odd and an even number is
odd
right triangle
distributive axiom
Axioms

20. ?
and
the third side
even
even

21. x(y+z)
(x/100)m= n
x intercept
permutations
xy + xz

22. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
associative axiom of addition and multiplication
x + y
right triangle
180 degrees

23. 8-15-17
negative
1/2
right triangle
radius

24. Any integer is divisible by 8 if
w<0 and x>y
x²+ 2xy+y²
x>y and y>z
the last three numbers are divisible by 8

25. Area= 1/2bh perimeter= a+b+c
positive
x intercept
triangle
approx sums

26. 1/2bh
distributive axiom
area of a triangle
equal angles
b+d>c+e

27. If b²-4ac > 0 there are
two solutions
approx sums
right triangle
x<0 and z=x+y

28. 7-24-25
x + y
expression of an odd number
x intercept
right triangle

29. B²-4ac = 0 there is
the last three numbers are divisible by 8
one solution
b is the y-intercept
midpoint of a line segment joining 2 parts

30. 1/an
a?n
no solutions
x is greater than y
the percent of increase

31. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
diagonal of a square
cylinder
all acute angles are equal and all obtuse angles are equal
probability

32. z>y
x<0 and z=x+y
x-y/xy
the last digit is 0
pythagorean theorem

33. Any integer is divisible by 3 - if
circle
angle a and angle b = angle d
reflex angle
the sum of its digits is divisible by 3

34. x/100
360 degrees
square
x%
1 - 3 - 5 - 7 - 9

35. /100 (the ______ number over 100)
regular polygon properties
percent
the square of x
itself

36. 1/y-1/x x -y ? 0
diameter
no solutions
x-y/xy
x²-2xy+y²

37. In transversals
angle inscribed in semicircle
all acute angles are equal and all obtuse angles are equal
pythagorean theorem
if the last digit of the number is 0 -2 -4 -6 -8

38. A<x and x<b
odd
a<x<b
expression of an odd number
medians of a triangle

39. ?
perpendicular
solution set
obtuse angle
radius

40. 180°
domain of a relation
1.4
straight angle
right triangle

41. When the elements of a set are ordered pairs
is a subset of
relation
the last two digits of the number make a number that is divisible by 4
and

42. x > y or y< x
x is greater than y
rectangular solid
slope of a line joining two points
triangle or straight line

43. The product of x and y
the perpendicular distance
right triangle
x>y>0 and w>z>0
xy

44. ?
x²+ 2xy+y²
or
(x/100)m= n
percent

45. | |
x>y
x²-2xy+y²
parallel
angle bisector

46. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
midpoint of a line segment joining 2 parts
straight angle
right triangle
x>y and y>z

47. ?
right triangle
belongs to
xy< 0
180 degrees

48. Wx<wy
two solutions
angle bisector
w<0 and x>y
inverse of a relation

49. Any integer is divisible by 10 - if
equilateral triangle
diameter
22/7 or 3.14
the last digit is 0

50. The decrease from x to y
v3/2 or .87
x-y
parallel
simultaneous equations

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