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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. Is always a right angle.
even
angle inscribed in semicircle
approx square roots
altitude of a triangle

2. If ?B > ?A - then
c x (john'S age)
then side b > side a
approx sums
a

3. Any integer is divisible by 5 if
the last digit is either 0 or 5
even
properties of parallelograms
the percent of increase

4. Area= l x w perimeter = (2l)(2w)
rectangle
is a subset of
finding the union of sets
simultaneous equations in 2 unknowns

5. Sin 30°
right triangle
w<0 and x>y
1/2
the last digit is 0

6. 360°
x<0 and z=x+y
hexagon
all acute angles are equal and all obtuse angles are equal
circle

7. 2k
x<0
expression of an even number
right triangle
22/7 or 3.14

8. 8-15-17
x - y
right triangle
semicircle
angle inscribed in semicircle

9. Any integer is divisible by 8 if
central angle
the last three numbers are divisible by 8
approx products
the last two digits of the number make a number that is divisible by 4

10. Then their intersection is the null or empty set - written as Ø
b+d>c+e
if two sets have no elements in common
is a subset of
x²+ 2xy+y²

11. x+w> y+z
commutative axiom of addition and multiplication
xy>0
right triangle
x>y and w>z

12. Any line that connects two points on a circle.
the third side
chord
parallelogram
x²-y²

13. Volume= 4/3?r² surface area= 4?r²
angle inscribed in semicircle
360 degrees
positive
sphere

14. 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
properties of a square
if the last digit of the number is 0 -2 -4 -6 -8
the last digit is 0
associative axiom of addition and multiplication

15. V2
all acute angles are equal and all obtuse angles are equal
rectangular solid
1.4
3.16

16. 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)
probability
if two sets have no elements in common
right triangle
xy + xz

17. 90°
even
right angle
straight angle
x<0

18. (sum of individual quantities or measures/ total number of quantities or measures)
x²-y²
360 degrees
average
x and y

19. Area= s² perimeter= 4s
average
diameter of circle
circle
square

20. Is the set of the second components of the ordered pairs
x - y
slope of a line joining two points
range of a relation
1.4

21. All even numbers end in the digits of
properties of parallelograms
0 - 2 - 4 - 6 - 8
x + y
inscribed angle

22. In transversals
supplementary angles
y-x
1.4
all acute angles are equal and all obtuse angles are equal

23. Angles that equal 180 degrees
times
supplementary angles
regular polygon properties
n percent less than x

24. N is what % of m
n= mx/100
right triangle
a set
the square of x

25. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
standard deviation
average
reflex angle
midpoint of a line segment joining 2 parts

26. 1. determine a rough approximation of the square root of the number. 2. divide the number by all the primes that are less than the approx square root. If the number is not divisible by ANY of the these primes - then it is prime. If it IS divisible -
equal to the sum of the measures of the remote exterior angles
combinations
determining if a number is prime
angle bisector

27. Is a subset of every set
isosceles triangle
1
isosceles triangle
null set

28. The sum of any two sides of a triangle is greater than
the third side
expression of an even number
greater than c
x percent

29. ?
and
x>y>0 and w>z>0
odd
right triangle

30. Diagonal= sv2
straight angle
diagonal of a square
sphere
perpendicular bisectors

31. x < y or y> x
x is less than y
trapezoid
obtuse angle
(y-x/x)100

32. A chord through the center of the circle
properties of a rhombus
diameter
b+d>c+e
coinciding lines

33. x older than y
x + y
expression of an even number
closed set
consistent lines

34. A<x and x<b
regular polygon properties
x>y
simultaneous equations in 2 unknowns
a<x<b

35. When two parallel lines are crossed by a third straight line (transversal) - then
then side b > side a
standard deviation
all acute angles are equal and all obtuse angles are equal
distributive axiom

36. 3(4+1)= 3 x 4 + 3 x 1
hexagon
distributive axiom
right angle
circle

37. | |
angle inscribed in semicircle
regular polygon properties
the last two digits of the number make a number that is divisible by 4
parallel

38. The increase from x to y
+y
the sum of parts
equal to the slope of the other
y-x

39. Area = ?r² circumference(perimeter)= 2?r
circle
equals
x-y
1/2

40. If under the operation - any two members of the set constitute an element of the set ( * the product of the elements multiplied by themselves must also be an element of the set*)
approx sums
positive
slope of a line joining two points
closed set

41. The angles opposite to sides that are equal in length have
circle
equal angles
a side< b side
x-y/xy

42. All three sides and all three angles are equal
parallel
180 degrees
c x (john'S age)
equilateral triangle

43. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
semicircle
x>y
the last digit is either 0 or 5
average

44. Area= 1/2bh perimeter= a+b+c
triangle
properties of a rectangle
x percent
all acute angles are equal and all obtuse angles are equal

45. The percent increase from x to y (y>x)
equals
x>y and w>z
(y-x/x)100
straight angle

46. y years from now
+y
the percent of decrease
the last digit is 0
times

47. A+b=c+ d=d
a+b+d=c+d
is a subset of
x + y
1.7

48. Wx<wy
and
similar triangles
x percent
w<0 and x>y

49. One angle is equal 90° and the other two angles are equal to the sum of 90°
right triangle
medians of a triangle
the last digit is either 0 or 5
area of a triangle

50. ? if a side is equal to b side then - the opposite corresponding angles are
any variable
square
central angle
equal