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Test your basic knowledge |
GRE Math Strategies
Start Test
Study First
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. Set of solutions to an equation
opposite the greatest side
square
medians of a triangle
solution set
2. (x-y)(x-y) = (x-y)²
rectangular solid
x²-2xy+y²
y angle< x angle
standard deviation
3. (x+y)(x+y)= (x+y)²
x<0
determining if a number is prime
x²+ 2xy+y²
a
4. 1/x + 1/y x -y ? 0
circle
x+y/xy
diameter of circle
y-x
5. 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 -
determining if a number is prime
two solutions
±vx
closed set
6. Any line that connects two points on a circle.
y-x
vertical angles
greater than c
chord
7. All odd numbers end in the digits of
1.7
tangent
even
1 - 3 - 5 - 7 - 9
8. 1/y-1/x x -y ? 0
1 - 3 - 5 - 7 - 9
isosceles triangle
x-y/xy
negative
9. 1/2d
permutations
radius of a circle
straight angle
two solutions
10. Any integer is divisible by 10 - if
a side< b side
the last digit is 0
a<x<b
x²-2xy+y²
11. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
quadratic equations
angle
radius
12. 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.
right triangle
set
negative
altitude of a triangle
13. Angles directly across each other are equal
1.4
perpendicular bisectors
even
vertical angles
14. B²-4ac = 0 there is
one solution
all acute angles are equal and all obtuse angles are equal
positive
(y-x/x)100
15. Is - as - was - has - cost
equals
a relation is a function
xy< 0
average
16. 2k + 1
right triangle
expression of an odd number
polygon
x>y
17. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
set
all acute angles are equal and all obtuse angles are equal
b+d>c+e
diameter
18. ?if y angle< x angle - then
times
right angle
cylinder
a side< b side
19. Any integer is divisible by 9 - if
the square of x
properties of a rhombus
the sum of its digits is divisible by 9
v3/2 or .87
20. ?
x is greater than y
Axioms
cylinder
is a subset of
21. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
odd
the last three numbers are divisible by 8
simultaneous equations
hexagon
22. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
parallelogram
pythagorean theorem
x - y
perpendicular bisectors
23. xw> yz
x>y and w>z
x>y>0 and w>z>0
1.7
a side< b side
24. If two lines are perpendicular - the slope of one is the
standard deviation
triangle
negative reciprocal of the other
vertical angles
25. All even numbers end in the digits of
combinations
0 - 2 - 4 - 6 - 8
c x (john'S age)
circle
26. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
find the intersection of two sets
x intercept
xy-xz
v(x2-x1)²+ (y2-y1)²
27. y years from now
properties of parallelograms
the last two digits of the number make a number that is divisible by 4
+y
approx square roots
28. Is the set of the second components of the ordered pairs
0 - 2 - 4 - 6 - 8
range of a relation
triangle
the last digit is 0
29. Any integer is divisible by 5 if
always positive or zero
the last digit is either 0 or 5
y intercept
xy-xz
30. C²= a²+b² and angle x and y are equal to 90°
any variable
trapezoid
right triangle
one solution
31. x older than y
never divide by zero
right triangle
inverse of a relation
x + y
32. ?
implies
right triangle
central angle
and
33. Area= 1/2bh perimeter= a+b+c
obtuse angle
+y
triangle
rectangle
34. 180°
central angle
xy< 0
triangle or straight line
±vx
35. x(y+z)
angle inscribed in semicircle
two solutions
xy + xz
hexagon
36. R²
diameter of circle
1/2
greater than c
1.4
37. N= combinations taken (order does not matter) r= rate at a time nCr or C(n -r) = (n)!/(r)! (remember to cancel out common numbers)
right triangle
the last digit is either 0 or 5
combinations
if the last digit of the number is 0 -2 -4 -6 -8
38. 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
approx products
x>y and w>z
find the intersection of two sets
39. The sume of x and y
inscribed angle
pythagorean theorem
x + y
standard deviation
40. ? if a side < b side - then
always positive or zero
y angle< x angle
all acute angles are equal and all obtuse angles are equal
xy-xz
41. The angles opposite to sides that are equal in length have
equal
perpendicular bisectors
determining if a number is prime
equal angles
42. If ?B > ?A - then
0 - 2 - 4 - 6 - 8
perpendicular
then side b > side a
and
43. Any integer is divisible by 3 - if
all acute angles are equal and all obtuse angles are equal
(x/100)m= n
the sum of its digits is divisible by 3
regular polygon properties
44. 9-40-41
180 degrees
null set
polygon
right triangle
45. 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)
b+d>c+e
implies
x²-y²
probability
46. The percent decrease from x to y ( y<x)
odd
then side b > side a
(x-y/x)100
similar triangles
47. Which - what
coinciding lines
any variable
rectangular solid
times
48. x more than y
x + y
hemisphere
odd
Axioms
49. Is the set of the first components of the ordered pairs.
the percent of decrease
domain of a relation
average
the sum of parts
50. Between 90° and 180°
obtuse angle
y-x
radius of a circle
range of a relation
Can you answer 50 questions in 15 minutes?
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