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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. C²= a²+b² and angle x and y are equal to 90°
right triangle
set
xy
then side b > side a

2. If the base angles of a triangle are equal - the triangle is
solution set
isosceles
even
x - y

3. 180°
straight angle
a relation is a function
x<0
isosceles triangle

4. A line that is perpendicular to a radius and that passes through only one point of the circle.
tangent
straight angle
semicircle
the square of x

5. y years ago
expression of an odd number
determining if a number is prime
-y
1 - 3 - 5 - 7 - 9

6. xn<0 if n is odd and xn>0 if n is even
vertical angles
x<0
similar triangles
a set

7. y<x
no solutions
simultaneous equations in 2 unknowns
right triangle
x>y

8. Product of an even number and any other number is
determining if a number is prime
Axioms
even
+y

9. | |
x - y
percent
supplementary angles
parallel

10. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
equal angles
simultaneous equations in 2 unknowns
semicircle

11. Any number squared or raised to an even power is
properties of a rhombus
find the intersection of two sets
relation
always positive or zero

12. Any integer is divisible by 10 - if
equal angles
the last digit is 0
a<x<b
x percent

13. If b²-4ac < 0 - there are
b is the y-intercept
sphere
equal angles
no solutions

14. The distance from the center of the circle
relation
angle a and angle b = angle d
radius
obtuse angle

15. If the each element of the domain occurs only once as a FIRST component
all acute angles are equal and all obtuse angles are equal
cylinder
square
a relation is a function

16. 1/x + 1/y x -y ? 0
x+y/xy
implies
properties of a rhombus
all acute angles are equal and all obtuse angles are equal

17. 90°
a set
equal to the slope of the other
right angle
(x-y/x)100

18. 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
the last digit is either 0 or 5
approx square roots
any variable
a<x<b

19. 1/2d
x<0
vertical angles
a
radius of a circle

20. x>0 and y>0 or x<0 and y<0
a set
xy>0
isosceles triangle
the third side

21. Integer is divisible by 2
if the last digit of the number is 0 -2 -4 -6 -8
parallelogram
cylinder
inconsistent lines

22. Sin 30°
y intercept
expression of an odd number
w>0 and x>y
1/2

23. 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.
implies
perpendicular bisectors
v(x2-x1)²+ (y2-y1)²
c x (john'S age)

24. Sum of two even numbers is
even
the percent of decrease
determining if a number is prime
permutations

25. ?
inscribed angle
angle
perpendicular bisectors
right triangle

26. ?
xy>0
implies
opposite the greatest side
right triangle

27. Sum of two odd numbers is
even
polygon
properties of a rectangle
consistent lines

28. Area= s² perimeter= 4s
square
hemisphere
properties of parallelograms
n percent less than x

29. x > y or y< x
(x/100)m= n
n= mx/100
x is greater than y
xy>0

30. The product of an even number of negative numbers is
approx products
isosceles triangle
radius
positive

31. 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.
angle bisector
parallel
x-y
parallelogram

32. One angle is equal 90° and the other two angles are equal to the sum of 90°
x and y
equal angles
right triangle
a<x<b

33. All odd numbers end in the digits of
1 - 3 - 5 - 7 - 9
hemisphere
odd
all acute angles are equal and all obtuse angles are equal

34. If ?B > ?A - then
Axioms
semicircle
then side b > side a
properties of a rectangle

35. 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
Axioms
isosceles
inscribed angle
right triangle

36. 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 -
combinations
determining if a number is prime
x - y
n= mx/100

37. (x-y)(x-y) = (x-y)²
x²-2xy+y²
a
a side< b side
distributive axiom

38. Of
combinations
times
equilateral triangle
if the last digit of the number is 0 -2 -4 -6 -8

39. The difference between x and y
semicircle
x + y
x - y
right triangle

40. 1/an
medians of a triangle
inscribed angle
a?n
right triangle

41. 5-12-13
x+y/xy
n percent less than x
equilateral triangle
right triangle

42. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
positive
trapezoid
180 degrees
never divide by zero

43. ?if y angle< x angle - then
a side< b side
it is also divisible by 2 and 3
right triangle
x%

44. ? if a side is equal to b side then - the opposite corresponding angles are
equal
approx products
find the intersection of two sets
tangent

45. V3
x<0
a side< b side
1.7
x>y

46. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}
pythagorean theorem
when finding a solution set
consistent lines
square

47. Sum of an odd and an even number is
odd
regular polygon properties
times
even

48. R²
even
x>y and w>z
diameter of circle
or

49. A+b=c+ d=d
x>y>0 and w>z>0
right triangle
a+b+d=c+d
angle

50. x+w> y+z
1.4
or
null set
x>y and w>z