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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.
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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. 1/2d
the last digit is 0
radius of a circle
x - y
b+d>c+e

2. The product of an even number of negative numbers is
positive
0 - 2 - 4 - 6 - 8
the last three numbers are divisible by 8
equilateral triangle

3. x - (n/100)x
belongs to
n percent less than x
cylinder
right triangle

4. Any integer is divisible by 4 - if
the last digit is either 0 or 5
equilateral triangle
relation
the last two digits of the number make a number that is divisible by 4

5. x²
the square of x
the sum of its digits is divisible by 9
right triangle
average

6. x+w> y+z
x>y and w>z
a<x<b
is a subset of
then side b > side a

7. ? if a side is equal to b side then - the opposite corresponding angles are
a side< b side
itself
two solutions
equal

8. ?
implies
always positive or zero
x%
perpendicular

9. Any integer is divisible by 10 - if
b is the y-intercept
angle a and angle b = angle d
properties of a rectangle
the last digit is 0

10. Which - what
any variable
tangent
right triangle
the percent of decrease

11. 1/2bh
v(x2-x1)²+ (y2-y1)²
the last two digits of the number make a number that is divisible by 4
area of a triangle
vertical angles

12. Sin 60°
x+y/xy
v3/2 or .87
right triangle
a+b+d=c+d

13. If two lines are parallel - the slope of one is
equal to the slope of the other
similar triangles
the last digit is either 0 or 5
3.16

14. All even numbers end in the digits of
0 - 2 - 4 - 6 - 8
x%
reflex angle
all acute angles are equal and all obtuse angles are equal

15. If y²= x - then y =
a relation is a function
±vx
180 degrees
sphere

16. 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
vertical angles
+y
approx square roots
similar triangles

17. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
diameter of circle
inconsistent lines
xy-xz
any variable

18. x(y-z)
xy-xz
x-y/xy
distributive axiom
v(x2-x1)²+ (y2-y1)²

19. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
hemisphere
slope of a line joining two points
isosceles
x>y>0 and w>z>0

20. 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.
Axioms
polygon
relation
y angle< x angle

21. Sum of an odd and an even number is
equal angles
x²-2xy+y²
odd
x>y>0 and w>z>0

22. 1/an
the percent of increase
a?n
find the intersection of two sets
right triangle

23. A/A¹ = B/B¹= C/C¹
similar triangles
odd
b is the y-intercept
right triangle

24. A<x and x<b
right triangle
inverse of a relation
a<x<b
vertical angles

25. If two lines are perpendicular - the slope of one is the
a+b+d=c+d
xy-xz
midpoint of a line segment joining 2 parts
negative reciprocal of the other

26. If ?B > ?A - then
inverse of a relation
then side b > side a
the last digit is either 0 or 5
implies

27. Any integer is divisible by 9 - if
the sum of its digits is divisible by 9
simultaneous equations in 2 unknowns
equilateral triangle
simultaneous equations

28. 1. subtract each number from the average of the numbers 2. square the result of each of the numbers 3. add all those results and then divide by how many numbers you originally had. 4. take the square root of that result
when finding a solution set
standard deviation
consistent lines
1.7

29. ?
reflex angle
x-y/xy
and
x<0 and z=x+y

30. The point where the line crosses the x-axis - y will always = 0 in this case
right triangle
Axioms
-y
x intercept

31. (x+y) (x-y)
right angle
n= mx/100
all acute angles are equal and all obtuse angles are equal
x²-y²

32. | |
n percent less than x
equal to the slope of the other
parallel
xy + xz

33. x younger than y
negative reciprocal of the other
x - y
y-x
v3/2 or .87

34. ?
pythagorean theorem
x%
x+y/xy
22/7 or 3.14

35. 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.
xy
right triangle
right triangle
central angle

36. Integer is divisible by 2
n percent greater than x
odd
right triangle
if the last digit of the number is 0 -2 -4 -6 -8

37. Sin 45°
finding the union of sets
reflex angle
diameter
v2/2 or .71

38. x>0 and y>0 or x<0 and y<0
angle a and angle b = angle d
xy>0
if two sets have no elements in common
then side b > side a

39. Wx>wy
1 - 3 - 5 - 7 - 9
w>0 and x>y
right angle
perpendicular

40. 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
is a subset of
right triangle
approx sums
hemisphere

41. ?
x and y
x>y and w>z
rectangle
is a subset of

42. y<x
obtuse angle
x²-2xy+y²
x>y
x-y

43. Any integer is divisible by 8 if
a set
the last three numbers are divisible by 8
triangle or straight line
opposite the greatest side

44. Any integer is divisible by 5 if
isosceles triangle
x-y/xy
similar triangles
the last digit is either 0 or 5

45. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
similar triangles
x²-y²
closed set
x<0 and z=x+y

46. x(y+z)
y-x
1.7
area of a triangle
xy + xz

47. x + (n/100)x
slope of a line joining two points
quadratic equations
properties of a rhombus
n percent greater than x

48. Two tangents to a circle from the same point outside of the circle are always
b is the y-intercept
equal
right triangle
x percent

49. The sum of any two sides of a triangle is greater than
the third side
right triangle
inconsistent lines
equal

50. 8-15-17
y intercept
parallelogram
find the intersection of two sets
right triangle

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GRE Math Strategies

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