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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. Less than 90°
v2/2 or .71
xy
angle bisector
acute angle

2. All even numbers end in the digits of
the last three numbers are divisible by 8
even
0 - 2 - 4 - 6 - 8
(x/100)m= n

3. Sin 45°
negative reciprocal of the other
v2/2 or .71
approx square roots
b is the y-intercept

4. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
probability
properties of a rectangle
radius
set

5. V2
1.4
1.7
the percent of decrease
always positive or zero

6. Between 180° and 360°
x-y
if the last digit of the number is 0 -2 -4 -6 -8
closed set
reflex angle

7. All three sides and all three angles are equal
y-x
equilateral triangle
obtuse angle
implies

8. If b²-4ac > 0 there are
commutative axiom of addition and multiplication
(x-y/x)100
domain of a relation
two solutions

9. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
1.4
consistent lines
isosceles triangle
±vx

10. 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
angle inscribed in semicircle
angle a and angle b = angle d
range of a relation
approx sums

11. One angle is equal 90° and the other two angles are equal to the sum of 90°
equals
a relation is a function
right triangle
the sum of parts

12. Intersect at only one point - the point is the only solution to the pair of equations
equilateral triangle
consistent lines
b+d>c+e
(x/100)m= n

13. N is what % of m
determining if a number is prime
n= mx/100
x and y
average

14. Any integer is divisible by 9 - if
n percent less than x
1.4
perpendicular
the sum of its digits is divisible by 9

15. When two parallel lines are crossed by a third straight line (transversal) - then
x>y
right triangle
all acute angles are equal and all obtuse angles are equal
altitude of a triangle

16. In a triangle - the greatest angles lies
isosceles
similar triangles
properties of a rectangle
opposite the greatest side

17. Any integer is divisible by 3 - if
angle bisector
the sum of its digits is divisible by 3
x - y
semicircle

18. A line that is perpendicular to a radius and that passes through only one point of the circle.
(y-x/x)100
simultaneous equations
equal angles
tangent

19. M= y2-y1/x2-x1
a relation is a function
right triangle
slope of a line joining two points
-y

20. Sin 60°
22/7 or 3.14
properties of a rhombus
vertical angles
v3/2 or .87

21. Product of two odd numbers is
cylinder
perpendicular bisectors
odd
then side b > side a

22. xn<0 if n is odd and xn>0 if n is even
x<0
combinations
y intercept
isosceles triangle

23. The distance from the center of the circle
radius
xy + xz
xy>0
3.16

24. V10
(x-y/x)100
180 degrees
3.16
perpendicular

25. The angles opposite to sides that are equal in length have
x - y
diameter
a relation is a function
equal angles

26. 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.
the sum of its digits is divisible by 3
central angle
x-y/xy
find the intersection of two sets

27. A+b=c+ d=d
a+b+d=c+d
right triangle
a relation is a function
properties of a rhombus

28. In transversals
all acute angles are equal and all obtuse angles are equal
x + y
1/2
x<0

29. If an equation can be put into the form y= mx +b - then
b is the y-intercept
properties of parallelograms
right triangle
itself

30. 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)
probability
xy< 0
the perpendicular distance
the sum of its digits is divisible by 3

31. 9-40-41
right triangle
y intercept
no solutions
equal

32. ?
straight angle
even
360 degrees
or

33. 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.
average
-y
pythagorean theorem
medians of a triangle

34. ?if y angle< x angle - then
negative
trapezoid
a side< b side
if the last digit of the number is 0 -2 -4 -6 -8

35. A°
1
semicircle
quadratic equations
xy

36. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
approx square roots
area of a triangle
y intercept
semicircle

37. Every set is a subset of
x<0 and z=x+y
itself
equilateral triangle
x and y

38. (x-y)(x-y) = (x-y)²
c x (john'S age)
x²-2xy+y²
pythagorean theorem
n percent less than x

39. 3-4-5
closed set
the percent of decrease
right triangle
opposite the greatest side

40. Between 90° and 180°
the square of x
x%
negative reciprocal of the other
obtuse angle

41. 2k
expression of an even number
times
a
x>y>0 and w>z>0

42. x²
the square of x
x+y/xy
closed set
right triangle

43. Volume= e(edge)³ surface area= 6e²
cube
vertical angles
v(x2-x1)²+ (y2-y1)²
midpoint of a line segment joining 2 parts

44. If b²-4ac < 0 - there are
similar triangles
right triangle
(x-y/x)100
no solutions

45. x - (n/100)x
rectangle
domain of a relation
square
n percent less than x

46. The distance between two parallel lines or from a point to a line always means
the perpendicular distance
even
straight angle
equal

47. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
permutations
3.16
all acute angles are equal and all obtuse angles are equal
belongs to

48. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
diameter
right triangle
x percent
inconsistent lines

49. Is always a right angle.
+y
positive
if the last digit of the number is 0 -2 -4 -6 -8
angle inscribed in semicircle

50. The sum of the interior angles is
180 degrees
b is the y-intercept
x>y and y>z
1.7