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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. The sume of x and y
diagonal of a square
±vx
x + y
right triangle

2. 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
and
approx square roots
y-x
any variable

3. Area = ?r² circumference(perimeter)= 2?r
radius of a circle
perpendicular
a relation is a function
circle

4. The sum of the interior angles is
angle a and angle b = angle d
relation
x>y and w>z
180 degrees

5. 360°
x - y
circle
w>0 and x>y
vertical angles

6. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
standard deviation
equilateral triangle
expression of an even number
similar triangles

7. 1/2bh
acute angle
average
area of a triangle
a

8. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
determining if a number is prime
chord
quadratic equations
180 degrees

9. 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
solution set
standard deviation
positive
equilateral triangle

10. Any number squared or raised to an even power is
always positive or zero
a+b+d=c+d
cylinder
xy + xz

11. Is drawn from the vertices perpendicular to the opposite sides. The lengths of these lines are useful in calculating the area of the trinagle since the area of the triangle is 1/2bh and the height and the _____are the same.
altitude of a triangle
±vx
equal
find the intersection of two sets

12. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
supplementary angles
set
always positive or zero
opposite the greatest side

13. x>0 and y<0 or x<0 and y >0
xy< 0
x percent
x-y
properties of a rhombus

14. 1-1-1 (60-60-60)
perpendicular bisectors
equilateral triangle
the percent of decrease
y-x

15. Is the relation with ALL ordered pairs REVERSED.
standard deviation
belongs to
right triangle
inverse of a relation

16. If ?B > ?A - then
b+d>c+e
medians of a triangle
then side b > side a
properties of a rectangle

17. Is a subset of every set
a+b+d=c+d
x - y
null set
x>y and w>z

18. 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 two pairs of congruent triangles
a<x<b
standard deviation
right triangle
properties of parallelograms

19. C²= a²+b² and angle x and y are equal to 90°
all acute angles are equal and all obtuse angles are equal
right triangle
x + y
one solution

20. The sum of any two sides of a triangle is greater than
the third side
v3/2 or .87
triangle or straight line
approx products

21. x +z > y+z
x>y
determining if a number is prime
perpendicular bisectors
right triangle

22. (x+y)(x+y)= (x+y)²
c x (john'S age)
x²+ 2xy+y²
always positive or zero
opposite the greatest side

23. ? if a side < b side - then
x+y/xy
y-x
x<0
y angle< x angle

24. ?
a side< b side
perpendicular
expression of an odd number
null set

25. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
equilateral triangle
(x/100)m= n
domain of a relation

26. V2
1.4
equal to the slope of the other
circle
Axioms

27. Area= 1/2bh perimeter= a+b+c
x + y
the last two digits of the number make a number that is divisible by 4
average
triangle

28. Wx<wy
a
belongs to
w<0 and x>y
a<x<b

29. Side a +side b of a ? is
the perpendicular distance
a?n
finding the union of sets
greater than c

30. If y²= x - then y =
cube
b is the y-intercept
equal to the slope of the other
±vx

31. Every set is a subset of
itself
perpendicular bisectors
(y-x/x)100
it is also divisible by 2 and 3

32. 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
right triangle
right triangle
hemisphere
properties of a rectangle

33. Sum of two even numbers is
semicircle
x>y
even
x and y

34. x younger than y
x - y
a
c x (john'S age)
angle bisector

35. x < y or y> x
opposite the greatest side
the perpendicular distance
x is less than y
times

36. If two lines are perpendicular - the slope of one is the
a?n
x>y
x and y
negative reciprocal of the other

37. What % of m is n
the last digit is either 0 or 5
(x/100)m= n
altitude of a triangle
all acute angles are equal and all obtuse angles are equal

38. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
a?n
Axioms
no solutions
trapezoid

39. The percent increase from x to y (y>x)
b is the y-intercept
positive
cube
(y-x/x)100

40. 9-40-41
angle
right triangle
y-x
if the last digit of the number is 0 -2 -4 -6 -8

41. 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
hexagon
one solution
sphere
coinciding lines

42. Any line that connects two points on a circle.
x²-y²
parallelogram
chord
the last digit is either 0 or 5

43. 1. determine a rough approximation of the square root of the number. 2. divide the number by all the primes that are less than the approx square root. If the number is not divisible by ANY of the these primes - then it is prime. If it IS divisible -
implies
determining if a number is prime
x and y
n percent less than x

44. V3
always positive or zero
w>0 and x>y
a relation is a function
1.7

45. 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
circle
diagonal of a square
right triangle

46. Two tangents to a circle from the same point outside of the circle are always
x + y
radius of a circle
-y
equal

47. x>z
y intercept
x>y and y>z
n percent greater than x
360 degrees

48. 1/y-1/x x -y ? 0
the last three numbers are divisible by 8
sphere
x-y/xy
(x-y/x)100

49. x(y-z)
b is the y-intercept
expression of an odd number
xy-xz
the third side

50. If an equation can be put into the form y= mx +b - then
reflex angle
b is the y-intercept
straight angle
properties of parallelograms