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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 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
coinciding lines
when finding a solution set
average
y intercept

2. The angles opposite to sides that are equal in length have
equal angles
hexagon
supplementary angles
cube

3. In a triangle - the greatest angles lies
opposite the greatest side
if the last digit of the number is 0 -2 -4 -6 -8
isosceles
angle a and angle b = angle d

4. A subset of a set is
a set
xy + xz
xy< 0
1 - 3 - 5 - 7 - 9

5. Is always a right angle.
angle inscribed in semicircle
expression of an even number
angle
medians of a triangle

6. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
(y-x/x)100
positive
hemisphere
±vx

7. 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
approx square roots
commutative axiom of addition and multiplication
right triangle
area of a triangle

8. 90°
inconsistent lines
v3/2 or .87
right triangle
right angle

9. V2
a+b+d=c+d
1
1.4
x%

10. All odd numbers end in the digits of
properties of a square
1 - 3 - 5 - 7 - 9
x intercept
associative axiom of addition and multiplication

11. The sum of any two sides of a triangle is greater than
approx products
supplementary angles
radius
the third side

12. 5+3= 3+5 and 5 x 3= 3 x 5
probability
b+d>c+e
the square of x
commutative axiom of addition and multiplication

13. (x+y) (x-y)
greater than c
opposite the greatest side
a<x<b
x²-y²

14. One angle is equal 90° and the other two angles are equal to the sum of 90°
inscribed angle
right triangle
x<0 and z=x+y
360 degrees

15. 180°
equal angles
simultaneous equations in 2 unknowns
implies
straight angle

16. The whole equals
1
the sum of parts
circle
x + y

17. M= y2-y1/x2-x1
slope of a line joining two points
x<0 and z=x+y
x-y
never divide by zero

18. All three sides and all three angles are equal
properties of a rectangle
regular polygon properties
equilateral triangle
xy-xz

19. Less than 90°
acute angle
two solutions
x>y>0 and w>z>0
midpoint of a line segment joining 2 parts

20. The quotient of any quantity (except 0) divided by zero is infinity
never divide by zero
the sum of parts
right triangle
negative

21. Area= l x w perimeter = (2l)(2w)
x>y and y>z
1.4
rectangle
cylinder

22. Angles that equal 180 degrees
all acute angles are equal and all obtuse angles are equal
equal to the slope of the other
supplementary angles
then side b > side a

23. x - (n/100)x
diameter of circle
if two sets have no elements in common
n percent less than x
implies

24. Area= s² perimeter= 4s
angle
square
x<0 and z=x+y
odd

25. If ?B > ?A - then
y intercept
v2/2 or .71
right triangle
then side b > side a

26. Product of an even number and any other number is
coinciding lines
x>y and y>z
even
standard deviation

27. 1/y-1/x x -y ? 0
expression of an odd number
a?n
the percent of increase
x-y/xy

28. Of
odd
obtuse angle
times
xy-xz

29. 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.
equal to the sum of the measures of the remote exterior angles
medians of a triangle
range of a relation
n percent less than x

30. (x+y)(x+y)= (x+y)²
x²+ 2xy+y²
angle a and angle b = angle d
reflex angle
properties of parallelograms

31. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
one solution
find the intersection of two sets
simultaneous equations
greater than c

32. Angle whose sides are two chords. The vertex of the angles lies on the circumference of the circle. The number of degrees of the angle is equal to 1/2 the intercepted arc
(y-x/x)100
then side b > side a
inscribed angle
cube

33. Set of solutions to an equation
even
simultaneous equations
solution set
all acute angles are equal and all obtuse angles are equal

34. Every set is a subset of
isosceles triangle
the last digit is 0
equal to the slope of the other
itself

35. 3(4+1)= 3 x 4 + 3 x 1
is a subset of
parallel
distributive axiom
1/2

36. Diagonal= sv2
belongs to
y angle< x angle
diagonal of a square
circle

37. Intersect at only one point - the point is the only solution to the pair of equations
right triangle
x²-y²
if the last digit of the number is 0 -2 -4 -6 -8
consistent lines

38. If b²-4ac < 0 - there are
no solutions
null set
reflex angle
radius of a circle

39. 360°
x - y
circle
average
simultaneous equations in 2 unknowns

40. Area = ?r² circumference(perimeter)= 2?r
is a subset of
circle
or
belongs to

41. If an equation can be put into the form y= mx +b - then
the last digit is 0
negative reciprocal of the other
b is the y-intercept
reflex angle

42. 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
the last three numbers are divisible by 8
equal to the sum of the measures of the remote exterior angles
probability

43. Wx<wy
xy
w<0 and x>y
even
x is less than y

44. If two lines are parallel - the slope of one is
reflex angle
equal to the slope of the other
x is greater than y
x²-2xy+y²

45. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
solution set
the sum of its digits is divisible by 3
quadratic equations
similar triangles

46. The percent decrease from x to y ( y<x)
(x-y/x)100
right triangle
even
n percent less than x

47. 9-40-41
right triangle
-y
v2/2 or .71
semicircle

48. A<x and x<b
equilateral triangle
a<x<b
xy
similar triangles

49. | |
parallel
x-y/xy
two solutions
360 degrees

50. 1-1-v2 (90-45-45)
pythagorean theorem
right triangle
polygon
n= mx/100