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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. x/100
x percent
a side< b side
equal to the sum of the measures of the remote exterior angles
n percent less than x

2. Integer is divisible by 2
x<0 and z=x+y
if the last digit of the number is 0 -2 -4 -6 -8
quadratic equations
perpendicular

3. B>c+ d>e
b+d>c+e
x>y
properties of parallelograms
equal angles

4. Angle whose sides are two chords. The vertex of the angles lies on the circumference of the circle. The number of degrees of the angle is equal to 1/2 the intercepted arc
b is the y-intercept
finding the union of sets
if two sets have no elements in common
inscribed angle

5. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
permutations
it is also divisible by 2 and 3
standard deviation
greater than c

6. The point where the line crosses the y-axis - x will always = 0 in this case
1/2
x + y
y intercept
similar triangles

7. 1/x + 1/y x -y ? 0
v2/2 or .71
circle
isosceles
x+y/xy

8. ?
right triangle
angle
odd
x intercept

9. 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
x>y and y>z
equal angles
approx sums
parallel

10. Volume=lwh surface area= 2wh + 2hl + 2lw
triangle
rectangular solid
the last two digits of the number make a number that is divisible by 4
equilateral triangle

11. The point where the line crosses the x-axis - y will always = 0 in this case
negative
x intercept
approx sums
combinations

12. x +z > y+z
y-x
diameter
x>y
xy< 0

13. A<x and x<b
w>0 and x>y
perpendicular bisectors
a<x<b
a?n

14. x + (n/100)x
or
180 degrees
n percent greater than x
greater than c

15. 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
domain of a relation
simultaneous equations
coinciding lines
x>y

16. (amount of increase/original amount) x 100
is a subset of
the percent of increase
360 degrees
chord

17. Any number squared or raised to an even power is
1
always positive or zero
a?n
then side b > side a

18. Sin 60°
properties of parallelograms
v3/2 or .87
central angle
belongs to

19. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
inconsistent lines
it is also divisible by 2 and 3
quadratic equations
all acute angles are equal and all obtuse angles are equal

20. 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.
central angle
1
right triangle
right triangle

21. x>z
0 - 2 - 4 - 6 - 8
x>y and y>z
closed set
opposite the greatest side

22. All angles are right angles and diagonals are equal 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonals divides it into
properties of a rectangle
a+b+d=c+d
determining if a number is prime
n percent greater than x

23. A¹
it is also divisible by 2 and 3
equilateral triangle
a
x percent

24. Which - what
triangle
any variable
x-y/xy
if two sets have no elements in common

25. 8-15-17
right triangle
triangle or straight line
pythagorean theorem
1

26. ? if a side < b side - then
y angle< x angle
radius
any variable
±vx

27. Volume= 4/3?r² surface area= 4?r²
supplementary angles
or
equal
sphere

28. (sum of individual quantities or measures/ total number of quantities or measures)
average
right angle
square
x<0

29. If two lines are parallel - the slope of one is
average
probability
equal to the slope of the other
expression of an even number

30. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
associative axiom of addition and multiplication
no solutions
angle bisector
even

31. When two parallel lines are crossed by a third straight line (transversal) - then
angle inscribed in semicircle
1.4
always positive or zero
all acute angles are equal and all obtuse angles are equal

32. Is the set of the first components of the ordered pairs.
tangent
domain of a relation
equal
perpendicular

33. 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
xy-xz
approx square roots
similar triangles
tangent

34. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
x-y/xy
x<0 and z=x+y
Axioms
properties of a square

35. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
equilateral triangle
v2/2 or .71
a<x<b
v(x2-x1)²+ (y2-y1)²

36. The distance from the center of the circle
x + y
implies
radius
triangle

37. A chord through the center of the circle
diameter
y-x
trapezoid
approx square roots

38. V2
(x-y/x)100
x - y
1.4
x²-y²

39. 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}
when finding a solution set
one solution
relation
a side< b side

40. | |
right triangle
all acute angles are equal and all obtuse angles are equal
parallel
x percent

41. 1/an
a?n
the sum of parts
supplementary angles
x%

42. Of
times
and
negative reciprocal of the other
equal angles

43. y years ago
central angle
right triangle
-y
even

44. Are the lines drawn from each vertex to the midpoint of its opposite side. they cross at a point that divides each individual ______into two parts.
medians of a triangle
right triangle
itself
vertical angles

45. Any integer is divisible by 3 - if
sphere
3.16
1 - 3 - 5 - 7 - 9
the sum of its digits is divisible by 3

46. M= y2-y1/x2-x1
slope of a line joining two points
standard deviation
percent
and

47. Sum of two even numbers is
even
approx square roots
trapezoid
odd

48. What % of m is n
right triangle
(x/100)m= n
commutative axiom of addition and multiplication
hexagon

49. 1-v3- 2 (90-30-60)
right triangle
acute angle
even
opposite the greatest side

50. All sides are equal and all of whose angles are equal. 1. can be inscribed in a circle and can be circumscribed about another circle. 2. each angle is equal to the sum of the angles divided by the number of sides 180(n-2)°/n.
regular polygon properties
coinciding lines
x>y and w>z
x percent