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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. Any integer is divisible by 4 - if
properties of parallelograms
the last two digits of the number make a number that is divisible by 4
quadratic equations
standard deviation

2. Sum of two even numbers is
22/7 or 3.14
radius of a circle
even
the sum of parts

3. x>0 and y>0 or x<0 and y<0
greater than c
a
belongs to
xy>0

4. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
percent
parallelogram
similar triangles
sphere

5. If an equation can be put into the form y= mx +b - then
x is less than y
inscribed angle
b is the y-intercept
(y-x/x)100

6. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
isosceles triangle
the third side
probability
even

7. 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.
the third side
inconsistent lines
negative reciprocal of the other
perpendicular bisectors

8. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
0 - 2 - 4 - 6 - 8
x<0
Axioms
altitude of a triangle

9. Sin 45°
x>y and w>z
the last digit is either 0 or 5
finding the union of sets
v2/2 or .71

10. If y²= x - then y =
midpoint of a line segment joining 2 parts
reflex angle
trapezoid
±vx

11. Product of two odd numbers is
odd
similar triangles
even
parallel

12. ?if y angle< x angle - then
right triangle
a side< b side
pythagorean theorem
equal angles

13. The whole equals
equal
then side b > side a
x²+ 2xy+y²
the sum of parts

14. 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
square
y-x
expression of an even number

15. 8-15-17
combinations
right triangle
consistent lines
x-y

16. ?
parallel
set
x>y>0 and w>z>0
or

17. Wx<wy
w<0 and x>y
slope of a line joining two points
percent
equilateral triangle

18. 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
triangle
finding the union of sets
cube
3.16

19. The difference between x and y
x - y
the perpendicular distance
x>y and w>z
the last digit is 0

20. The lines that divide each angle of the triangle into two equal parts. these lines meet in a point that is the center of a circle inscribed in the triangle.
n percent less than x
a side< b side
angle bisector
tangent

21. ?
22/7 or 3.14
quadratic equations
xy
right triangle

22. 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
the percent of increase
similar triangles
xy-xz

23. 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.
regular polygon properties
a
angle a and angle b = angle d
x + y

24. 7-24-25
y-x
properties of a square
approx square roots
right triangle

25. The percent decrease from x to y ( y<x)
is a subset of
(x-y/x)100
right triangle
it is also divisible by 2 and 3

26. x+w> y+z
x>y and w>z
the sum of its digits is divisible by 3
y intercept
x + y

27. 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
x is less than y
w>0 and x>y
simultaneous equations in 2 unknowns

28. The point where the line crosses the x-axis - y will always = 0 in this case
b is the y-intercept
approx products
equal to the slope of the other
x intercept

29. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
x%
triangle or straight line
semicircle
x+y/xy

30. 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 -
trapezoid
determining if a number is prime
approx products
the square of x

31. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
x and y
set
trapezoid
quadratic equations

32. If b²-4ac < 0 - there are
triangle or straight line
x>y>0 and w>z>0
times
no solutions

33. Product of an even number and any other number is
360 degrees
acute angle
even
diameter

34. Area= bh perimeter= 2a +2b
range of a relation
itself
a set
parallelogram

35. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.
w>0 and x>y
even
polygon
determining if a number is prime

36. Any number squared or raised to an even power is
negative reciprocal of the other
always positive or zero
approx products
properties of a rectangle

37. 1/y-1/x x -y ? 0
times
percent
x is greater than y
x-y/xy

38. Is the set of the first components of the ordered pairs.
3.16
domain of a relation
isosceles
n percent less than x

39. x²
n= mx/100
x²-2xy+y²
the square of x
two solutions

40. 1/2d
inscribed angle
radius of a circle
parallel
a<x<b

41. x(y+z)
x+y/xy
the third side
(x/100)m= n
xy + xz

42. A°
1
triangle
the percent of increase
x>y and y>z

43. y years from now
+y
similar triangles
equal angles
w>0 and x>y

44. 1-1-1 (60-60-60)
square
equilateral triangle
negative reciprocal of the other
permutations

45. (x+y)(x+y)= (x+y)²
xy + xz
x²+ 2xy+y²
midpoint of a line segment joining 2 parts
odd

46. M= y2-y1/x2-x1
supplementary angles
the last digit is 0
slope of a line joining two points
1

47. ?
find the intersection of two sets
the last three numbers are divisible by 8
angle
the last two digits of the number make a number that is divisible by 4

48. Any integer is divisible by 6 if
angle
w>0 and x>y
right triangle
it is also divisible by 2 and 3

49. Is the set of the second components of the ordered pairs
range of a relation
right triangle
all acute angles are equal and all obtuse angles are equal
equal

50. 1-1-v2 (90-45-45)
consistent lines
diameter
right triangle
-y