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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 distance from the center of the circle
radius
1 - 3 - 5 - 7 - 9
diameter
x + y

2. 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.
straight angle
regular polygon properties
(x/100)m= n
a relation is a function

3. /100 (the ______ number over 100)
x>y
percent
x - y
the last digit is 0

4. All three sides and all three angles are equal
vertical angles
right triangle
right triangle
equilateral triangle

5. x less than y
consistent lines
v2/2 or .71
the square of x
y-x

6. The decrease from x to y
x-y
x percent
Axioms
the sum of its digits is divisible by 9

7. x - (n/100)x
parallel
a?n
n percent less than x
(x/100)m= n

8. x(y+z)
triangle or straight line
inverse of a relation
trapezoid
xy + xz

9. Product of an even number and any other number is
the last three numbers are divisible by 8
even
a?n
central angle

10. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
right angle
supplementary angles
v(x2-x1)²+ (y2-y1)²
a<x<b

11. Any integer is divisible by 6 if
it is also divisible by 2 and 3
determining if a number is prime
square
(y-x/x)100

12. Product of two odd numbers is
negative
a relation is a function
determining if a number is prime
odd

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.
x and y
circle
polygon
x²-2xy+y²

14. Less than 90°
polygon
isosceles triangle
acute angle
angle

15. Volume= 4/3?r² surface area= 4?r²
determining if a number is prime
right triangle
standard deviation
sphere

16. x+w> y+z
x²-2xy+y²
when finding a solution set
x>y and w>z
the perpendicular distance

17. ?
x<0 and z=x+y
is a subset of
x-y/xy
a side< b side

18. ?
belongs to
the square of x
inverse of a relation
null set

19. Sum of an odd and an even number is
radius of a circle
odd
the percent of increase
the third side

20. Integer is divisible by 2
parallel
x is less than y
if the last digit of the number is 0 -2 -4 -6 -8
medians of a triangle

21. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
x percent
hemisphere
obtuse angle
(y-x/x)100

22. 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonals divides it into two pairs of congruent triangles
properties of parallelograms
find the intersection of two sets
perpendicular
right triangle

23. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
triangle or straight line
y-x
the sum of its digits is divisible by 9
right triangle

24. 2k
expression of an even number
consistent lines
diameter of circle
the last digit is 0

25. (x-y)(x-y) = (x-y)²
equal to the sum of the measures of the remote exterior angles
a<x<b
x²-2xy+y²
central angle

26. ?
v(x2-x1)²+ (y2-y1)²
implies
simultaneous equations
odd

27. Is a subset of every set
null set
right triangle
a set
even

28. 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)
itself
approx products
the square of x
combinations

29. Is the set of the second components of the ordered pairs
probability
±vx
right triangle
range of a relation

30. ?if y angle< x angle - then
a side< b side
a+b+d=c+d
1/2
circle

31. 3-4-5
all acute angles are equal and all obtuse angles are equal
chord
right triangle
x intercept

32. x > y or y< x
properties of a rectangle
x is greater than y
parallelogram
approx sums

33. ?
or
percent
x-y/xy
positive

34. ? if a side is equal to b side then - the opposite corresponding angles are
x²-y²
equal
percent
two solutions

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
find the intersection of two sets
xy-xz
the sum of its digits is divisible by 9
circle

36. 1/2d
right triangle
altitude of a triangle
radius of a circle
1

37. Ax= by + C
simultaneous equations in 2 unknowns
Axioms
equal angles
v3/2 or .87

38. Any integer is divisible by 5 if
x>y
the last digit is either 0 or 5
isosceles triangle
diagonal of a square

39. A chord through the center of the circle
the sum of its digits is divisible by 3
diameter
straight angle
x+y/xy

40. Area= 1/2bh perimeter= a+b+c
the last digit is 0
equals
properties of a rhombus
triangle

41. Sin 30°
never divide by zero
x²+ 2xy+y²
1/2
inverse of a relation

42. 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
relation
approx sums
itself

43. The whole equals
180 degrees
odd
the sum of parts
circle

44. x more than y
right triangle
standard deviation
x + y
x²+ 2xy+y²

45. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
even
midpoint of a line segment joining 2 parts
pythagorean theorem
opposite the greatest side

46. In a triangle - the greatest angles lies
odd
equilateral triangle
opposite the greatest side
always positive or zero

47. Sin 60°
v3/2 or .87
radius
one solution
distributive axiom

48. V2/2- v2/2 - 1 (90-45-45)
then side b > side a
odd
x+y/xy
isosceles triangle

49. Any arc length is less than
360 degrees
parallelogram
straight angle
itself

50. (amount of increase/original amount) x 100
xy-xz
x intercept
percent
the percent of increase