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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. M= y2-y1/x2-x1
tangent
diagonal of a square
xy>0
slope of a line joining two points

2. ?
central angle
perpendicular
then side b > side a
triangle

3. In a triangle - the greatest angles lies
all acute angles are equal and all obtuse angles are equal
x is less than y
opposite the greatest side
similar triangles

4. ?
the last digit is either 0 or 5
no solutions
is a subset of
x-y

5. All odd numbers end in the digits of
a+b+d=c+d
1 - 3 - 5 - 7 - 9
right triangle
rectangular solid

6. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
x - y
hemisphere
(x/100)m= n
radius

7. Sum of two odd numbers is
0 - 2 - 4 - 6 - 8
then side b > side a
w>0 and x>y
even

8. The sum of the interior angles is
0 - 2 - 4 - 6 - 8
x>y and w>z
parallel
180 degrees

9. x < y or y> x
y angle< x angle
no solutions
x is less than y
the percent of increase

10. When the elements of a set are ordered pairs
pythagorean theorem
v(x2-x1)²+ (y2-y1)²
or
relation

11. One angle is equal 90° and the other two angles are equal to the sum of 90°
the last digit is 0
right triangle
a relation is a function
probability

12. A¹
sphere
right triangle
the sum of its digits is divisible by 9
a

13. x more than y
360 degrees
if two sets have no elements in common
radius
x + y

14. x>0 and y>0 or x<0 and y<0
radius of a circle
chord
xy>0
the last two digits of the number make a number that is divisible by 4

15. 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
square
associative axiom of addition and multiplication
hexagon

16. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
combinations
(x-y/x)100
quadratic equations
all acute angles are equal and all obtuse angles are equal

17. A<x and x<b
x + y
c x (john'S age)
isosceles triangle
a<x<b

18. Any integer is divisible by 10 - if
pythagorean theorem
times
the last digit is 0
a<x<b

19. The distance from the center of the circle
the sum of its digits is divisible by 9
v(x2-x1)²+ (y2-y1)²
radius
supplementary angles

20. Any line that connects two points on a circle.
1/2
equilateral triangle
range of a relation
chord

21. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
xy + xz
22/7 or 3.14
the last digit is 0
Axioms

22. 180°
triangle or straight line
inscribed angle
equal
y intercept

23. If an equation can be put into the form y= mx +b - then
equilateral triangle
c x (john'S age)
b is the y-intercept
xy

24. 360°
x>y and y>z
acute angle
circle
vertical angles

25. x younger than y
y intercept
x - y
x-y/xy
commutative axiom of addition and multiplication

26. Volume= 4/3?r² surface area= 4?r²
right triangle
it is also divisible by 2 and 3
sphere
angle inscribed in semicircle

27. 1-v3- 2 (90-30-60)
opposite the greatest side
consistent lines
right triangle
the square of x

28. The product of an even number of negative numbers is
right triangle
circle
positive
range of a relation

29. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
vertical angles
right triangle
trapezoid
coinciding lines

30. The quotient of any quantity (except 0) divided by zero is infinity
a set
never divide by zero
equilateral triangle
b is the y-intercept

31. (x-y)(x-y) = (x-y)²
right angle
x²-2xy+y²
opposite the greatest side
obtuse angle

32. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
v(x2-x1)²+ (y2-y1)²
odd
and
null set

33. A+b=c+ d=d
the percent of decrease
180 degrees
a+b+d=c+d
x - y

34. The distance between two parallel lines or from a point to a line always means
triangle or straight line
x intercept
the perpendicular distance
approx products

35. xn<0 if n is odd and xn>0 if n is even
x<0 and z=x+y
the last digit is 0
n= mx/100
x<0

36. ?if y angle< x angle - then
equal to the sum of the measures of the remote exterior angles
commutative axiom of addition and multiplication
a side< b side
inverse of a relation

37. The percent increase from x to y (y>x)
xy
(y-x/x)100
all acute angles are equal and all obtuse angles are equal
3.16

38. Any integer is divisible by 5 if
w<0 and x>y
the last digit is either 0 or 5
range of a relation
1 - 3 - 5 - 7 - 9

39. V3
equal to the sum of the measures of the remote exterior angles
1.7
it is also divisible by 2 and 3
rectangle

40. 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.
it is also divisible by 2 and 3
properties of a rhombus
right angle
polygon

41. 90°
perpendicular
equal angles
equilateral triangle
right angle

42. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
±vx
cylinder
right triangle
isosceles

43. The product of an odd number of negative numbers is
distributive axiom
properties of a rectangle
combinations
negative

44. 1/an
the percent of decrease
x%
a?n
x+y/xy

45. Area= bh perimeter= 2a +2b
associative axiom of addition and multiplication
supplementary angles
medians of a triangle
parallelogram

46. Is the set of the second components of the ordered pairs
the sum of its digits is divisible by 3
range of a relation
-y
x percent

47. 8-15-17
xy>0
when finding a solution set
right triangle
x<0 and z=x+y

48. 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
parallel
isosceles triangle
right triangle
approx square roots

49. Is always a right angle.
all acute angles are equal and all obtuse angles are equal
right triangle
angle inscribed in semicircle
right triangle

50. 3-4-5
right triangle
is a subset of
y angle< x angle
180 degrees

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GRE Math Strategies

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