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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 +z > y+z
x²+ 2xy+y²
x>y
relation
±vx

2. Diagonals divide into 6 equilateral triangles - the sides are equal to the sides of the ________. if inscribed in a circle - the length of each side is equal to the length of the radius of the circle.
hexagon
x + y
xy>0
tangent

3. x+w> y+z
1/2
x%
x>y and w>z
pythagorean theorem

4. Diagonal= sv2
n= mx/100
polygon
circle
diagonal of a square

5. Any integer is divisible by 6 if
similar triangles
area of a triangle
it is also divisible by 2 and 3
solution set

6. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
isosceles triangle
sphere
area of a triangle
inverse of a relation

7. Of
times
supplementary angles
one solution
it is also divisible by 2 and 3

8. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
a
approx products
a relation is a function
simultaneous equations

9. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
a+b+d=c+d
cylinder
commutative axiom of addition and multiplication
set

10. Wx>wy
w>0 and x>y
associative axiom of addition and multiplication
(x/100)m= n
x>y>0 and w>z>0

11. 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
probability
standard deviation
inscribed angle
the sum of its digits is divisible by 3

12. Which - what
1/2
a side< b side
any variable
is a subset of

13. ?
opposite the greatest side
implies
right triangle
y-x

14. The point where the line crosses the x-axis - y will always = 0 in this case
x intercept
odd
range of a relation
the percent of increase

15. y<x
x<0
belongs to
x + y
x>y

16. x²
right triangle
the perpendicular distance
x>y and w>z
the square of x

17. (x+y) (x-y)
odd
x²-y²
w>0 and x>y
no solutions

18. What % of m is n
square
a?n
x²+ 2xy+y²
(x/100)m= n

19. Is the set of the first components of the ordered pairs.
slope of a line joining two points
domain of a relation
x-y/xy
perpendicular

20. 1-v3- 2 (90-30-60)
the sum of its digits is divisible by 3
angle bisector
right triangle
is a subset of

21. If b²-4ac < 0 - there are
no solutions
distributive axiom
area of a triangle
+y

22. Set of solutions to an equation
the last digit is either 0 or 5
solution set
sphere
x is less than y

23. The sum of the interior angles is
inverse of a relation
negative reciprocal of the other
distributive axiom
180 degrees

24. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
probability
Axioms
is a subset of
perpendicular bisectors

25. C²= a²+b² and angle x and y are equal to 90°
altitude of a triangle
right triangle
22/7 or 3.14
perpendicular bisectors

26. Product of two odd numbers is
average
odd
the last digit is 0
always positive or zero

27. V3
1.7
w>0 and x>y
semicircle
1/2

28. All odd numbers end in the digits of
y angle< x angle
a<x<b
1 - 3 - 5 - 7 - 9
v2/2 or .71

29. Between 180° and 360°
22/7 or 3.14
reflex angle
equals
n percent greater than x

30. 180°
x+y/xy
altitude of a triangle
permutations
triangle or straight line

31. x/100
combinations
x percent
y-x
right triangle

32. ? if a side is equal to b side then - the opposite corresponding angles are
radius of a circle
xy-xz
y-x
equal

33. Wx<wy
find the intersection of two sets
w<0 and x>y
the third side
supplementary angles

34. 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
inconsistent lines
altitude of a triangle
approx square roots
+y

35. A<x and x<b
a<x<b
angle a and angle b = angle d
w<0 and x>y
determining if a number is prime

36. If under the operation - any two members of the set constitute an element of the set ( * the product of the elements multiplied by themselves must also be an element of the set*)
closed set
xy
the sum of its digits is divisible by 9
properties of parallelograms

37. (x+y)(x+y)= (x+y)²
equilateral triangle
x²+ 2xy+y²
x+y/xy
midpoint of a line segment joining 2 parts

38. Volume= 4/3?r² surface area= 4?r²
y angle< x angle
cylinder
parallelogram
sphere

39. A line that is perpendicular to a radius and that passes through only one point of the circle.
tangent
all acute angles are equal and all obtuse angles are equal
a side< b side
set

40. Any integer is divisible by 10 - if
right triangle
opposite the greatest side
probability
the last digit is 0

41. x younger than y
similar triangles
sphere
medians of a triangle
x - y

42. 3(4+1)= 3 x 4 + 3 x 1
distributive axiom
similar triangles
equal
3.16

43. Sum of two even numbers is
y-x
regular polygon properties
1.7
even

44. 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 -
determining if a number is prime
percent
acute angle
xy< 0

45. The percent decrease from x to y ( y<x)
angle bisector
straight angle
(x-y/x)100
slope of a line joining two points

46. The product of x and y
x>y and y>z
parallel
a side< b side
xy

47. ?
inscribed angle
xy + xz
square
or

48. x - (n/100)x
x²-2xy+y²
n percent less than x
x - y
x+y/xy

49. Any integer is divisible by 3 - if
n= mx/100
the sum of its digits is divisible by 3
right triangle
angle bisector

50. Every set is a subset of
itself
approx sums
negative
square