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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. R²
always positive or zero
±vx
x-y
diameter of circle

2. Is the relation with ALL ordered pairs REVERSED.
n percent less than x
diameter of circle
inverse of a relation
0 - 2 - 4 - 6 - 8

3. The difference between x and y
the sum of its digits is divisible by 3
it is also divisible by 2 and 3
even
x - y

4. M= y2-y1/x2-x1
equal to the slope of the other
slope of a line joining two points
closed set
similar triangles

5. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
equilateral triangle
a<x<b
right triangle
v(x2-x1)²+ (y2-y1)²

6. The sum of any two sides of a triangle is greater than
or
the third side
the percent of increase
implies

7. 1-1-v2 (90-45-45)
isosceles triangle
right triangle
properties of parallelograms
x<0 and z=x+y

8. A/A¹ = B/B¹= C/C¹
(x-y/x)100
perpendicular bisectors
equilateral triangle
similar triangles

9. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
angle
trapezoid
closed set
Axioms

10. 7-24-25
one solution
right triangle
±vx
associative axiom of addition and multiplication

11. y<x
x-y
x>y
right triangle
x and y

12. Two tangents to a circle from the same point outside of the circle are always
v(x2-x1)²+ (y2-y1)²
parallel
equal
+y

13. ?
range of a relation
belongs to
sphere
hemisphere

14. 2k
xy< 0
slope of a line joining two points
expression of an even number
distributive axiom

15. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
xy-xz
consistent lines
Axioms
n percent less than x

16. All odd numbers end in the digits of
1 - 3 - 5 - 7 - 9
x percent
right angle
the last digit is 0

17. 9-40-41
chord
right triangle
straight angle
b+d>c+e

18. ?
x>y
is a subset of
belongs to
simultaneous equations in 2 unknowns

19. Then their intersection is the null or empty set - written as Ø
solution set
0 - 2 - 4 - 6 - 8
right triangle
if two sets have no elements in common

20. Is always a right angle.
angle inscribed in semicircle
x²-2xy+y²
equal
trapezoid

21. 1/2bh
x intercept
x is greater than y
standard deviation
area of a triangle

22. x>z
the percent of decrease
x and y
probability
x>y and y>z

23. Angle whose sides are two radii of the circle. The vertex of this angle is the center of the circle. The number of degrees is equal to the amount of arc length that the radd intercept.
properties of a square
isosceles
finding the union of sets
central angle

24. 1/y-1/x x -y ? 0
isosceles
x + y
x-y/xy
c x (john'S age)

25. 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
negative
approx square roots
null set
x<0 and z=x+y

26. Set of solutions to an equation
solution set
xy< 0
equals
even

27. Which - what
vertical angles
any variable
greater than c
right triangle

28. 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.
(x-y/x)100
n= mx/100
angle bisector
sphere

29. Any integer is divisible by 4 - if
y-x
the last two digits of the number make a number that is divisible by 4
x+y/xy
cylinder

30. 180°
angle bisector
greater than c
straight angle
a+b+d=c+d

31. In a triangle - if ?c(interior angle in triangle) and ?d(exterior angle out of triangle) are supplmentary angles - than ?a and ?b are remote interior angles to <d - thus - a +b+c = 180 (triangle) c+d = 180 (supplementary angles)
x%
x>y
angle a and angle b = angle d
semicircle

32. Between 180° and 360°
odd
cube
times
reflex angle

33. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
it is also divisible by 2 and 3
midpoint of a line segment joining 2 parts
opposite the greatest side
implies

34. A+b=c+ d=d
commutative axiom of addition and multiplication
rectangle
cube
a+b+d=c+d

35. Wx<wy
x - y
central angle
x + y
w<0 and x>y

36. The measure of an interior angle is
the percent of decrease
the percent of increase
(x-y/x)100
equal to the sum of the measures of the remote exterior angles

37. The distance from the center of the circle
obtuse angle
radius
standard deviation
equals

38. Between 90° and 180°
the last three numbers are divisible by 8
the percent of increase
obtuse angle
angle a and angle b = angle d

39. 8-15-17
b is the y-intercept
right triangle
distributive axiom
altitude of a triangle

40. x + y
percent
-y
x and y
the sum of its digits is divisible by 3

41. The whole equals
y-x
similar triangles
semicircle
the sum of parts

42. The case where the two equations are equivalent (just two different forms of the same mathematical relation). Any point that satisfies either of the equations - automatically satisfies both
coinciding lines
the last digit is 0
vertical angles
if two sets have no elements in common

43. The point where the line crosses the y-axis - x will always = 0 in this case
triangle
y intercept
x²+ 2xy+y²
area of a triangle

44. Area= s² perimeter= 4s
quadratic equations
rectangular solid
v3/2 or .87
square

45. If two lines are perpendicular - the slope of one is the
then side b > side a
even
two solutions
negative reciprocal of the other

46. B>c+ d>e
similar triangles
0 - 2 - 4 - 6 - 8
b+d>c+e
equal angles

47. x+w> y+z
and
a set
y-x
x>y and w>z

48. 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
n percent less than x
isosceles
perpendicular bisectors
approx products

49. x younger than y
the sum of its digits is divisible by 3
x - y
right triangle
quadratic equations

50. x>0 and y>0 or x<0 and y<0
xy>0
permutations
x - y
y intercept