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GRE Math Strategies

Subjects : gre, math

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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 5 if
approx products
all acute angles are equal and all obtuse angles are equal
the last digit is either 0 or 5
v(x2-x1)²+ (y2-y1)²

2. Between 180° and 360°
x + y
Axioms
b is the y-intercept
reflex angle

3. The angles opposite to sides that are equal in length have
all acute angles are equal and all obtuse angles are equal
equal angles
tangent
coinciding lines

4. Every set is a subset of
itself
obtuse angle
quadratic equations
Axioms

5. 3(4+1)= 3 x 4 + 3 x 1
3.16
distributive axiom
1.4
circle

6. (x+y) (x-y)
solution set
inconsistent lines
x²-y²
parallel

7. The point where the line crosses the y-axis - x will always = 0 in this case
x-y
+y
opposite the greatest side
y intercept

8. 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
inscribed angle
set
all acute angles are equal and all obtuse angles are equal
x - y

9. y<x
radius of a circle
consistent lines
x>y
360 degrees

10. Any number squared or raised to an even power is
odd
always positive or zero
positive
angle a and angle b = angle d

11. x>0 and y<0 or x<0 and y >0
xy< 0
vertical angles
x + y
180 degrees

12. 1/y-1/x x -y ? 0
x-y/xy
xy
properties of a square
a set

13. x + y
x-y/xy
x and y
parallelogram
1 - 3 - 5 - 7 - 9

14. Set of solutions to an equation
x>y>0 and w>z>0
solution set
the sum of parts
no solutions

15. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
semicircle
v(x2-x1)²+ (y2-y1)²
b is the y-intercept
vertical angles

16. The product of x and y
implies
xy
if the last digit of the number is 0 -2 -4 -6 -8
approx square roots

17. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
x - y
associative axiom of addition and multiplication
the perpendicular distance
1/2

18. x(y+z)
hemisphere
angle inscribed in semicircle
xy + xz
n percent less than x

19. Any integer is divisible by 8 if
x intercept
the last three numbers are divisible by 8
x%
obtuse angle

20. x older than y
x + y
belongs to
the percent of decrease
360 degrees

21. The distance from the center of the circle
approx sums
always positive or zero
radius
belongs to

22. ?if y angle< x angle - then
n= mx/100
a side< b side
right triangle
itself

23. x²
the square of x
parallelogram
1 - 3 - 5 - 7 - 9
3.16

24. The sum of the interior angles is
n percent less than x
180 degrees
the third side
3.16

25. Sin 30°
trapezoid
diameter of circle
positive
1/2

26. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
trapezoid
x is greater than y
semicircle
perpendicular

27. A subset of a set is
vertical angles
circle
a set
n= mx/100

28. 9-40-41
reflex angle
equilateral triangle
right triangle
all acute angles are equal and all obtuse angles are equal

29. Ax= by + C
simultaneous equations in 2 unknowns
consistent lines
0 - 2 - 4 - 6 - 8
1 - 3 - 5 - 7 - 9

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)
cylinder
probability
the last three numbers are divisible by 8
x>y and y>z

31. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
equilateral triangle
perpendicular
the last two digits of the number make a number that is divisible by 4
Axioms

32. Angles directly across each other are equal
the last three numbers are divisible by 8
the last digit is 0
vertical angles
percent

33. 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
(x-y/x)100
coinciding lines
a
acute angle

34. A+b=c+ d=d
obtuse angle
a+b+d=c+d
times
+y

35. 90°
properties of parallelograms
obtuse angle
determining if a number is prime
right angle

36. Is drawn from the vertices perpendicular to the opposite sides. The lengths of these lines are useful in calculating the area of the trinagle since the area of the triangle is 1/2bh and the height and the _____are the same.
domain of a relation
altitude of a triangle
1
associative axiom of addition and multiplication

37. 5-12-13
right triangle
always positive or zero
acute angle
area of a triangle

38. Sum of an odd and an even number is
odd
properties of a square
isosceles triangle
permutations

39. x +z > y+z
find the intersection of two sets
x>y
chord
when finding a solution set

40. A chord through the center of the circle
is a subset of
v2/2 or .71
probability
diameter

41. 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.
x-y/xy
when finding a solution set
right triangle
perpendicular bisectors

42. Any integer is divisible by 6 if
the square of x
implies
it is also divisible by 2 and 3
hemisphere

43. Less than 90°
y-x
right triangle
approx square roots
acute angle

44. (amount of decrease/original amount) x 100
reflex angle
the percent of decrease
equilateral triangle
properties of a square

45. ?
n percent greater than x
is a subset of
commutative axiom of addition and multiplication
v(x2-x1)²+ (y2-y1)²

46. The product of an even number of negative numbers is
hemisphere
positive
reflex angle
n percent greater than x

47. x>z
xy
the sum of parts
x>y and y>z
isosceles triangle

48. Volume= e(edge)³ surface area= 6e²
x + y
angle bisector
square
cube

49. Sin 60°
v3/2 or .87
a?n
polygon
parallelogram

50. If b²-4ac < 0 - there are
approx square roots
commutative axiom of addition and multiplication
no solutions
similar triangles

Can you answer 50 questions in 15 minutes?

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GRE Math Strategies

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