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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. Any integer is divisible by 6 if
it is also divisible by 2 and 3
angle bisector
medians of a triangle
altitude of a triangle

2. 7-24-25
semicircle
all acute angles are equal and all obtuse angles are equal
right triangle
rectangle

3. Sum of an odd and an even number is
odd
properties of a square
y-x
implies

4. x+w> y+z
itself
x>y and w>z
approx square roots
two solutions

5. The sume of x and y
parallelogram
x + y
finding the union of sets
a relation is a function

6. Area= l x w perimeter = (2l)(2w)
chord
22/7 or 3.14
angle a and angle b = angle d
rectangle

7. R²
medians of a triangle
radius
diameter of circle
inverse of a relation

8. Sum of two even numbers is
x<0
altitude of a triangle
x and y
even

9. 180°
x>y and y>z
one solution
straight angle
diameter of circle

10. The percent increase from x to y (y>x)
(y-x/x)100
x>y
simultaneous equations
b+d>c+e

11. A<x and x<b
expression of an odd number
right triangle
rectangle
a<x<b

12. Volume= 4/3?r² surface area= 4?r²
sphere
if two sets have no elements in common
1.4
finding the union of sets

13. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
simultaneous equations
cylinder
polygon
x>y

14. Area = ?r² circumference(perimeter)= 2?r
equilateral triangle
xy + xz
closed set
circle

15. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
right triangle
when finding a solution set
a relation is a function

16. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
semicircle
if two sets have no elements in common
w>0 and x>y
the last two digits of the number make a number that is divisible by 4

17. ?
midpoint of a line segment joining 2 parts
chord
right triangle
perpendicular

18. 1-v3- 2 (90-30-60)
average
right triangle
the sum of its digits is divisible by 9
x+y/xy

19. ?
or
null set
angle a and angle b = angle d
square

20. 3(4+1)= 3 x 4 + 3 x 1
relation
distributive axiom
chord
closed set

21. 180°
odd
x>y and y>z
solution set
triangle or straight line

22. Any integer is divisible by 9 - if
opposite the greatest side
x and y
n= mx/100
the sum of its digits is divisible by 9

23. If an equation can be put into the form y= mx +b - then
n= mx/100
b is the y-intercept
sphere
standard deviation

24. x more than y
x>y
two solutions
x + y
angle a and angle b = angle d

25. When the elements of a set are ordered pairs
semicircle
relation
x is greater than y
slope of a line joining two points

26. 1. round the numbers being multiplied to one more place than it is being asked. 2. Multiply the rounded off numbers 3. round of product to desired number of places
the percent of increase
approx products
quadratic equations
x<0 and z=x+y

27. 3-4-5
right triangle
midpoint of a line segment joining 2 parts
or
right angle

28. What % of m is n
coinciding lines
semicircle
combinations
(x/100)m= n

29. 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)
x>y
1
(y-x/x)100
probability

30. Wx>wy
negative reciprocal of the other
w>0 and x>y
positive
the last digit is either 0 or 5

31. The point where the line crosses the y-axis - x will always = 0 in this case
right angle
y intercept
and
b is the y-intercept

32. y<x
x>y
the sum of its digits is divisible by 3
3.16
relation

33. Product of two odd numbers is
no solutions
odd
right triangle
1.7

34. Of
midpoint of a line segment joining 2 parts
(y-x/x)100
radius of a circle
times

35. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
coinciding lines
x + y
vertical angles
22/7 or 3.14

36. (x+y) (x-y)
diameter of circle
isosceles triangle
a+b+d=c+d
x²-y²

37. The measure of an interior angle is
x - y
equal to the sum of the measures of the remote exterior angles
the last three numbers are divisible by 8
circle

38. Any line that connects two points on a circle.
the last digit is either 0 or 5
chord
closed set
a relation is a function

39. B>c+ d>e
a set
b+d>c+e
xy< 0
expression of an even number

40. 5-12-13
right triangle
it is also divisible by 2 and 3
a relation is a function
the last two digits of the number make a number that is divisible by 4

41. ?
even
or
implies
(x-y/x)100

42. Sin 45°
x>y
equilateral triangle
x-y/xy
v2/2 or .71

43. 2k + 1
null set
approx sums
square
expression of an odd number

44. 2k
circle
expression of an even number
x + y
y-x

45. Any integer is divisible by 8 if
if the last digit of the number is 0 -2 -4 -6 -8
angle inscribed in semicircle
the last three numbers are divisible by 8
equal angles

46. When two parallel lines are crossed by a third straight line (transversal) - then
all acute angles are equal and all obtuse angles are equal
equilateral triangle
properties of a rhombus
odd

47. Angles directly across each other are equal
1/2
x + y
and
vertical angles

48. 1/x + 1/y x -y ? 0
x+y/xy
right triangle
x%
permutations

49. If b²-4ac < 0 - there are
x>y
no solutions
right triangle
v(x2-x1)²+ (y2-y1)²

50. ?
right triangle
supplementary angles
right triangle
is a subset of