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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. x > y or y< x
the last two digits of the number make a number that is divisible by 4
x>y
x is greater than y
properties of a square

2. 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.
is a subset of
angle bisector
greater than c
approx sums

3. A/A¹ = B/B¹= C/C¹
similar triangles
and
polygon
right triangle

4. 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
or
square
x - y
approx sums

5. Sin 60°
v3/2 or .87
right triangle
odd
midpoint of a line segment joining 2 parts

6. C²= a²+b² and angle x and y are equal to 90°
n percent less than x
parallel
right triangle
the third side

7. The whole equals
solution set
(x/100)m= n
the sum of parts
0 - 2 - 4 - 6 - 8

8. 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
itself
odd
x - y
coinciding lines

9. If ?B > ?A - then
null set
then side b > side a
y angle< x angle
x>y and y>z

10. A<x and x<b
triangle or straight line
x is less than y
obtuse angle
a<x<b

11. The difference between x and y
properties of a rhombus
probability
x + y
x - y

12. All odd numbers end in the digits of
1 - 3 - 5 - 7 - 9
perpendicular
combinations
the square of x

13. 90°
radius of a circle
equal to the slope of the other
solution set
right angle

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

15. Then their intersection is the null or empty set - written as Ø
if two sets have no elements in common
and
opposite the greatest side
percent

16. Integer is divisible by 2
simultaneous equations in 2 unknowns
if the last digit of the number is 0 -2 -4 -6 -8
approx sums
itself

17. The product of an odd number of negative numbers is
negative
sphere
properties of a square
v(x2-x1)²+ (y2-y1)²

18. x +z > y+z
find the intersection of two sets
belongs to
the last two digits of the number make a number that is divisible by 4
x>y

19. (sum of individual quantities or measures/ total number of quantities or measures)
average
circle
the third side
a set

20. 8-15-17
right triangle
approx products
simultaneous equations in 2 unknowns
always positive or zero

21. V3
equals
semicircle
properties of a square
1.7

22. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
vertical angles
cylinder
inverse of a relation
v2/2 or .71

23. B²-4ac = 0 there is
equilateral triangle
one solution
1.7
+y

24. Is a subset of every set
find the intersection of two sets
even
null set
radius of a circle

25. 180°
triangle or straight line
acute angle
solution set
even

26. V2
the sum of parts
isosceles triangle
solution set
1.4

27. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}
finding the union of sets
hemisphere
obtuse angle
when finding a solution set

28. 180°
straight angle
triangle or straight line
a<x<b
x>y and w>z

29. The quotient of any quantity (except 0) divided by zero is infinity
never divide by zero
1
(y-x/x)100
is a subset of

30. x(y-z)
b+d>c+e
xy-xz
equal to the sum of the measures of the remote exterior angles
negative

31. Volume= e(edge)³ surface area= 6e²
right triangle
always positive or zero
inverse of a relation
cube

32. V10
x²+ 2xy+y²
3.16
perpendicular
vertical angles

33. x²
xy + xz
the square of x
radius of a circle
tangent

34. The product of an even number of negative numbers is
positive
parallelogram
all acute angles are equal and all obtuse angles are equal
even

35. The decrease from x to y
x-y
Axioms
opposite the greatest side
right triangle

36. If two lines are perpendicular - the slope of one is the
approx square roots
negative reciprocal of the other
medians of a triangle
1.4

37. When the elements of a set are ordered pairs
equal to the slope of the other
right triangle
equals
relation

38. ?
polygon
angle
negative reciprocal of the other
the percent of decrease

39. (x+y) (x-y)
x²-y²
x<0 and z=x+y
right triangle
greater than c

40. If the each element of the domain occurs only once as a FIRST component
opposite the greatest side
x>y>0 and w>z>0
y-x
a relation is a function

41. x less than y
vertical angles
regular polygon properties
y-x
a relation is a function

42. 360°
x²+ 2xy+y²
circle
simultaneous equations
(x/100)m= n

43. The sume of x and y
quadratic equations
x + y
circle
if the last digit of the number is 0 -2 -4 -6 -8

44. The percent decrease from x to y ( y<x)
when finding a solution set
(x-y/x)100
the last digit is 0
midpoint of a line segment joining 2 parts

45. (amount of increase/original amount) x 100
similar triangles
±vx
(x-y/x)100
the percent of increase

46. ?
x-y/xy
perpendicular
(x/100)m= n
always positive or zero

47. 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)
properties of a square
x%
combinations
right triangle

48. x+w> y+z
xy
x-y/xy
x>y and w>z
never divide by zero

49. 1-1-1 (60-60-60)
equilateral triangle
the sum of its digits is divisible by 3
y-x
isosceles

50. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
right triangle
x>y and w>z
pythagorean theorem
Axioms

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GRE Math Strategies

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