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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. y years ago
-y
right triangle
x>y and w>z
x>y

2. Sum of two even numbers is
diagonal of a square
even
slope of a line joining two points
x + y

3. A+b=c+ d=d
solution set
opposite the greatest side
rectangular solid
a+b+d=c+d

4. 1/y-1/x x -y ? 0
pythagorean theorem
parallel
the sum of its digits is divisible by 9
x-y/xy

5. Any integer is divisible by 5 if
similar triangles
equal angles
the last digit is either 0 or 5
parallelogram

6. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
when finding a solution set
all acute angles are equal and all obtuse angles are equal
set
no solutions

7. ?
sphere
approx products
x + y
angle

8. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
permutations
angle bisector
diameter

9. M=number of favorable ways n= total number of ways (two events occurring is the prob of the first times the prob of the second)
v2/2 or .71
quadratic equations
regular polygon properties
probability

10. 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*)
a
closed set
diameter of circle
properties of a square

11. Write down every member in one or both of the sets - the union of two sets is a new set. the union of set A and B is written as A?B
finding the union of sets
y-x
sphere
area of a triangle

12. One angle is equal 90° and the other two angles are equal to the sum of 90°
null set
closed set
right triangle
-y

13. 1/x + 1/y x -y ? 0
implies
right triangle
reflex angle
x+y/xy

14. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
isosceles triangle
cylinder
the sum of its digits is divisible by 9
regular polygon properties

15. 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.
the third side
w<0 and x>y
rectangle
regular polygon properties

16. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
regular polygon properties
trapezoid
itself
cube

17. Sin 60°
y-x
3.16
determining if a number is prime
v3/2 or .87

18. 180°
triangle or straight line
semicircle
cube
perpendicular

19. Are the lines that bisect and are perpendicular to each of the three sides. The point where they meet is the center of the circumscribed circle.
expression of an odd number
perpendicular bisectors
straight angle
relation

20. ? if a side < b side - then
associative axiom of addition and multiplication
x>y and w>z
vertical angles
y angle< x angle

21. What % of m is n
right triangle
(x/100)m= n
positive
diagonal of a square

22. x - (n/100)x
n percent less than x
properties of a rhombus
even
a

23. V3
no solutions
distributive axiom
1.7
the last two digits of the number make a number that is divisible by 4

24. 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
times
y intercept
polygon

25. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
equilateral triangle
x>y
hexagon
midpoint of a line segment joining 2 parts

26. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
similar triangles
a?n
perpendicular
x+y/xy

27. y years from now
Axioms
equal angles
percent
+y

28. The sum of any two sides of a triangle is greater than
circle
the third side
equal to the sum of the measures of the remote exterior angles
acute angle

29. Between 180° and 360°
commutative axiom of addition and multiplication
reflex angle
diameter of circle
hexagon

30. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
associative axiom of addition and multiplication
right triangle
right triangle
average

31. 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.
right triangle
solution set
Axioms
central angle

32. A/A¹ = B/B¹= C/C¹
right triangle
hemisphere
similar triangles
+y

33. All odd numbers end in the digits of
1 - 3 - 5 - 7 - 9
(x/100)m= n
x percent
right triangle

34. Every set is a subset of
the sum of parts
it is also divisible by 2 and 3
itself
even

35. Is a subset of every set
null set
x²-2xy+y²
equals
the last digit is 0

36. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
find the intersection of two sets
greater than c
w<0 and x>y
perpendicular

37. ?
approx sums
simultaneous equations in 2 unknowns
rectangle
and

38. Diagonals are perpendicular to each other and bisect the vertex angles 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 diagonal
properties of a rhombus
right triangle
xy
the third side

39. Is the set of the first components of the ordered pairs.
domain of a relation
x%
one solution
properties of parallelograms

40. When two parallel lines are crossed by a third straight line (transversal) - then
the last digit is 0
right triangle
all acute angles are equal and all obtuse angles are equal
the sum of its digits is divisible by 9

41. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
v(x2-x1)²+ (y2-y1)²
negative reciprocal of the other
x²+ 2xy+y²
Axioms

42. Area = ?r² circumference(perimeter)= 2?r
circle
x-y/xy
simultaneous equations
find the intersection of two sets

43. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
(x/100)m= n
x>y
inconsistent lines
it is also divisible by 2 and 3

44. x + (n/100)x
22/7 or 3.14
angle bisector
n percent greater than x
x<0 and z=x+y

45. Any integer is divisible by 8 if
the last three numbers are divisible by 8
supplementary angles
positive
slope of a line joining two points

46. The distance from the center of the circle
associative axiom of addition and multiplication
the last two digits of the number make a number that is divisible by 4
cube
radius

47. xw> yz
xy-xz
right triangle
w<0 and x>y
x>y>0 and w>z>0

48. Diagonal= sv2
diagonal of a square
y angle< x angle
distributive axiom
triangle or straight line

49. x+w> y+z
x>y and w>z
if two sets have no elements in common
simultaneous equations in 2 unknowns
and

50. The angles opposite to sides that are equal in length have
equal angles
x - y
Axioms
angle bisector