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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. 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)
opposite the greatest side
right triangle
y intercept
combinations
2. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
vertical angles
hemisphere
slope of a line joining two points
probability
3. The angles opposite to sides that are equal in length have
isosceles triangle
rectangle
expression of an even number
equal angles
4. xw> yz
1.4
x>y>0 and w>z>0
right triangle
+y
5. A¹
a
trapezoid
slope of a line joining two points
angle bisector
6. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
or
isosceles triangle
negative
approx sums
7. V2/2- v2/2 - 1 (90-45-45)
medians of a triangle
xy< 0
isosceles triangle
equilateral triangle
8. ?
even
the percent of increase
and
circle
9. The point where the line crosses the x-axis - y will always = 0 in this case
x intercept
diagonal of a square
x + y
the square of x
10. x(y+z)
(x/100)m= n
the last two digits of the number make a number that is divisible by 4
determining if a number is prime
xy + xz
11. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
y angle< x angle
equilateral triangle
opposite the greatest side
set
12. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
right triangle
w<0 and x>y
is a subset of
v(x2-x1)²+ (y2-y1)²
13. Product of an even number and any other number is
even
altitude of a triangle
positive
probability
14. V2
1.4
w>0 and x>y
combinations
cylinder
15. Volume= 4/3?r² surface area= 4?r²
itself
x + y
standard deviation
sphere
16. 3-4-5
vertical angles
then side b > side a
right triangle
relation
17. (x-y)(x-y) = (x-y)²
cylinder
y-x
x²-2xy+y²
v3/2 or .87
18. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
a?n
if two sets have no elements in common
the perpendicular distance
Axioms
19. 1/an
distributive axiom
standard deviation
when finding a solution set
a?n
20. x/100
x%
x>y and y>z
slope of a line joining two points
hemisphere
21. If an equation can be put into the form y= mx +b - then
angle
acute angle
the percent of decrease
b is the y-intercept
22. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
domain of a relation
right triangle
(y-x/x)100
approx products
23. Any integer is divisible by 4 - if
semicircle
v(x2-x1)²+ (y2-y1)²
the last two digits of the number make a number that is divisible by 4
the sum of its digits is divisible by 9
24. B>c+ d>e
180 degrees
similar triangles
a+b+d=c+d
b+d>c+e
25. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
triangle
the sum of its digits is divisible by 3
odd
cylinder
26. The percent decrease from x to y ( y<x)
or
associative axiom of addition and multiplication
(x-y/x)100
semicircle
27. Wx<wy
permutations
equilateral triangle
w<0 and x>y
area of a triangle
28. x + y
consistent lines
approx products
equal to the slope of the other
x and y
29. Is - as - was - has - cost
x>y and w>z
if the last digit of the number is 0 -2 -4 -6 -8
right triangle
equals
30. x>0 and y<0 or x<0 and y >0
22/7 or 3.14
quadratic equations
xy< 0
when finding a solution set
31. | |
parallel
properties of parallelograms
x<0 and z=x+y
a+b+d=c+d
32. x younger than y
properties of a rectangle
polygon
x - y
the percent of decrease
33. C times as old as john
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on line
183
34. If two lines are perpendicular - the slope of one is the
x - y
180 degrees
negative reciprocal of the other
expression of an even number
35. 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.
hexagon
average
perpendicular
positive
36. What % of m is n
tangent
(x/100)m= n
one solution
a relation is a function
37. The sum of the interior angles is
rectangular solid
180 degrees
odd
y-x
38. y<x
radius
the last two digits of the number make a number that is divisible by 4
x>y
find the intersection of two sets
39. Any arc length is less than
x>y
x + y
360 degrees
radius of a circle
40. 90°
approx products
x percent
circle
right angle
41. 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
standard deviation
slope of a line joining two points
positive
-y
42. Two tangents to a circle from the same point outside of the circle are always
360 degrees
equal
n percent greater than x
the percent of increase
43. If two lines are parallel - the slope of one is
equal
equal to the slope of the other
x>y
always positive or zero
44. In a triangle - the greatest angles lies
equilateral triangle
opposite the greatest side
rectangle
expression of an odd number
45. All three sides and all three angles are equal
radius
equilateral triangle
right triangle
diagonal of a square
46. /100 (the ______ number over 100)
percent
x²-2xy+y²
right triangle
semicircle
47. 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.
altitude of a triangle
times
n percent greater than x
a<x<b
48. Sum of an odd and an even number is
odd
commutative axiom of addition and multiplication
triangle
circle
49. All odd numbers end in the digits of
1 - 3 - 5 - 7 - 9
always positive or zero
square
the sum of its digits is divisible by 3
50. 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 -
x + y
distributive axiom
determining if a number is prime
1.4