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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 + (n/100)x
x-y/xy
angle bisector
n percent greater than x
angle inscribed in semicircle

2. 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
the last digit is 0
the last three numbers are divisible by 8
x-y
properties of a rhombus

3. 1-1-1 (60-60-60)
equilateral triangle
right triangle
combinations
one solution

4. ?
the last digit is 0
properties of parallelograms
implies
right triangle

5. 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.
vertical angles
coinciding lines
expression of an even number
regular polygon properties

6. (x-y)(x-y) = (x-y)²
0 - 2 - 4 - 6 - 8
rectangle
permutations
x²-2xy+y²

7. The product of an even number of negative numbers is
central angle
opposite the greatest side
positive
parallel

8. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
vertical angles
diameter of circle
a set
b+d>c+e

9. V10
b+d>c+e
the sum of its digits is divisible by 3
right triangle
3.16

10. Area= l x w perimeter = (2l)(2w)
rectangle
vertical angles
diagonal of a square
xy + xz

11. Sin 45°
a?n
expression of an even number
relation
v2/2 or .71

12. z>y
x<0 and z=x+y
angle bisector
b is the y-intercept
right triangle

13. xn<0 if n is odd and xn>0 if n is even
commutative axiom of addition and multiplication
if two sets have no elements in common
x<0
1

14. The decrease from x to y
x-y
x<0 and z=x+y
x+y/xy
itself

15. Any number squared or raised to an even power is
x%
x + y
consistent lines
always positive or zero

16. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
isosceles triangle
positive
pythagorean theorem
right triangle

17. 7-24-25
angle a and angle b = angle d
right triangle
inconsistent lines
the perpendicular distance

18. In transversals
opposite the greatest side
x + y
all acute angles are equal and all obtuse angles are equal
range of a relation

19. (amount of decrease/original amount) x 100
probability
y-x
altitude of a triangle
the percent of decrease

20. B²-4ac = 0 there is
y angle< x angle
y-x
parallelogram
one solution

21. 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
and
xy + xz
approx sums
if two sets have no elements in common

22. The measure of an interior angle is
x<0
equal to the sum of the measures of the remote exterior angles
percent
finding the union of sets

23. The difference between x and y
x - y
right triangle
sphere
approx products

24. Any arc length is less than
equal angles
angle bisector
perpendicular
360 degrees

25. All odd numbers end in the digits of
x-y/xy
hemisphere
commutative axiom of addition and multiplication
1 - 3 - 5 - 7 - 9

26. ?
approx products
equilateral triangle
properties of a rhombus
or

27. Ax= by + C
simultaneous equations in 2 unknowns
equal to the slope of the other
triangle
y intercept

28. Is the set of the second components of the ordered pairs
trapezoid
a side< b side
range of a relation
x²-y²

29. x + y
x>y and y>z
x>y
x and y
vertical angles

30. Area= bh perimeter= 2a +2b
greater than c
positive
or
parallelogram

31. x>0 and y>0 or x<0 and y<0
if the last digit of the number is 0 -2 -4 -6 -8
xy>0
diagonal of a square
opposite the greatest side

32. The increase from x to y
the last digit is 0
y-x
right triangle
always positive or zero

33. Is the relation with ALL ordered pairs REVERSED.
inverse of a relation
b+d>c+e
triangle
xy

34. If ?B > ?A - then
x-y
simultaneous equations in 2 unknowns
then side b > side a
x<0 and z=x+y

35. Area= 1/2bh perimeter= a+b+c
all acute angles are equal and all obtuse angles are equal
c x (john'S age)
set
triangle

36. Sin 30°
0 - 2 - 4 - 6 - 8
implies
1/2
w>0 and x>y

37. If b²-4ac < 0 - there are
perpendicular bisectors
the percent of decrease
no solutions
circle

38. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
right triangle
1.7
supplementary angles
and

39. ? if a side is equal to b side then - the opposite corresponding angles are
even
x is less than y
equal
area of a triangle

40. A line that is perpendicular to a radius and that passes through only one point of the circle.
approx square roots
angle a and angle b = angle d
tangent
always positive or zero

41. Volume=lwh surface area= 2wh + 2hl + 2lw
equals
rectangular solid
w>0 and x>y
the last two digits of the number make a number that is divisible by 4

42. 2k
expression of an even number
even
equals
permutations

43. If y²= x - then y =
even
approx sums
±vx
always positive or zero

44. Any integer is divisible by 10 - if
a side< b side
right triangle
the last digit is 0
x%

45. The distance from the center of the circle
a set
hexagon
radius
supplementary angles

46. B>c+ d>e
1 - 3 - 5 - 7 - 9
b+d>c+e
xy>0
n percent greater than x

47. 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*)
x-y
closed set
midpoint of a line segment joining 2 parts
angle bisector

48. x(y-z)
commutative axiom of addition and multiplication
xy + xz
a side< b side
xy-xz

49. 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
or
a side< b side
c x (john'S age)

50. One angle is equal 90° and the other two angles are equal to the sum of 90°
xy + xz
right triangle
x%
rectangle