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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. When two parallel lines are crossed by a third straight line (transversal) - then
triangle or straight line
standard deviation
all acute angles are equal and all obtuse angles are equal
probability

2. Is always a right angle.
belongs to
the last digit is 0
odd
angle inscribed in semicircle

3. 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.
perpendicular bisectors
the percent of increase
find the intersection of two sets
closed set

4. 1. round the numbers being multiplied to one more place than it is being asked. 2. Multiply the rounded off numbers 3. round of product to desired number of places
approx products
v(x2-x1)²+ (y2-y1)²
c x (john'S age)
hexagon

5. The point where the line crosses the y-axis - x will always = 0 in this case
y intercept
y-x
x-y/xy
equilateral triangle

6. A<x and x<b
the sum of its digits is divisible by 3
x-y/xy
a<x<b
the last digit is 0

7. Diagonals are perpendicular to each other and bisect the vertex angles 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonal
the percent of increase
and
180 degrees
properties of a rhombus

8. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
odd
Axioms
supplementary angles
never divide by zero

9. C times as old as john

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10. 1-1-v2 (90-45-45)
cube
approx sums
right triangle
perpendicular bisectors

11. 1/x + 1/y x -y ? 0
reflex angle
x intercept
times
x+y/xy

12. x - (n/100)x
n percent less than x
diagonal of a square
x²-y²
a

13. Volume= e(edge)³ surface area= 6e²
cube
coinciding lines
diagonal of a square
belongs to

14. 180°
then side b > side a
equal
(x/100)m= n
triangle or straight line

15. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
similar triangles
the sum of its digits is divisible by 9
combinations
a side< b side

16. The whole equals
right triangle
consistent lines
x and y
the sum of parts

17. If b²-4ac > 0 there are
equilateral triangle
Axioms
x>y
two solutions

18. A+b=c+ d=d
radius of a circle
expression of an odd number
a+b+d=c+d
the percent of increase

19. x +z > y+z
y angle< x angle
x>y
x - y
x>y and y>z

20. Every set is a subset of
itself
permutations
x + y
equal angles

21. 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.
finding the union of sets
n= mx/100
hexagon
odd

22. Sum of two odd numbers is
x + y
even
±vx
then side b > side a

23. Any integer is divisible by 5 if
odd
the last digit is either 0 or 5
xy + xz
always positive or zero

24. 1. subtract each number from the average of the numbers 2. square the result of each of the numbers 3. add all those results and then divide by how many numbers you originally had. 4. take the square root of that result
x is greater than y
standard deviation
greater than c
properties of a rhombus

25. 180°
straight angle
x is less than y
the third side
belongs to

26. If y²= x - then y =
equal angles
properties of parallelograms
±vx
right triangle

27. Sin 30°
1/2
straight angle
x>y
v3/2 or .87

28. If an equation can be put into the form y= mx +b - then
expression of an odd number
acute angle
b is the y-intercept
n= mx/100

29. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
is a subset of
parallel
equals
v(x2-x1)²+ (y2-y1)²

30. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
inconsistent lines
medians of a triangle
supplementary angles
pythagorean theorem

31. 2k
the third side
x is greater than y
(x-y/x)100
expression of an even number

32. Volume= 4/3?r² surface area= 4?r²
sphere
tangent
x + y
circle

33. 1/2d
any variable
parallelogram
determining if a number is prime
radius of a circle

34. 7-24-25
y angle< x angle
equals
right triangle
properties of a rectangle

35. 2k + 1
x percent
finding the union of sets
expression of an odd number
the sum of its digits is divisible by 9

36. R²
diameter of circle
n percent less than x
x is less than y
equilateral triangle

37. Wx<wy
a?n
simultaneous equations
combinations
w<0 and x>y

38. If two lines are parallel - the slope of one is
equal to the slope of the other
x and y
x intercept
semicircle

39. (x+y) (x-y)
altitude of a triangle
x²-y²
v2/2 or .71
similar triangles

40. Between 180° and 360°
reflex angle
right triangle
x%
the sum of its digits is divisible by 3

41. xn<0 if n is odd and xn>0 if n is even
the sum of its digits is divisible by 3
the third side
x<0
parallelogram

42. Is - as - was - has - cost
odd
v(x2-x1)²+ (y2-y1)²
equals
triangle

43. Any integer is divisible by 8 if
angle
area of a triangle
standard deviation
the last three numbers are divisible by 8

44. Product of an even number and any other number is
even
x>y and y>z
+y
x is greater than y

45. The distance between two parallel lines or from a point to a line always means
equilateral triangle
two solutions
x + y
the perpendicular distance

46. What % of m is n
equal
probability
determining if a number is prime
(x/100)m= n

47. Any integer is divisible by 3 - if
the sum of its digits is divisible by 3
implies
associative axiom of addition and multiplication
angle

48. B>c+ d>e
v(x2-x1)²+ (y2-y1)²
b+d>c+e
all acute angles are equal and all obtuse angles are equal
regular polygon properties

49. Area= s² perimeter= 4s
square
it is also divisible by 2 and 3
a relation is a function
then side b > side a

50. All angles are right angles and diagonals are equal 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonals divides it into
properties of a rectangle
when finding a solution set
right triangle
finding the union of sets