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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. ?
or
when finding a solution set
average
the last two digits of the number make a number that is divisible by 4
2. The lines that divide each angle of the triangle into two equal parts. these lines meet in a point that is the center of a circle inscribed in the triangle.
never divide by zero
x-y
angle bisector
it is also divisible by 2 and 3
3. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
angle a and angle b = angle d
x²-2xy+y²
equal to the slope of the other
hemisphere
4. Any line that connects two points on a circle.
180 degrees
properties of a rectangle
chord
w>0 and x>y
5. Two tangents to a circle from the same point outside of the circle are always
vertical angles
x<0 and z=x+y
equal
triangle or straight line
6. What % of m is n
x²-2xy+y²
acute angle
(x/100)m= n
or
7. Which - what
any variable
all acute angles are equal and all obtuse angles are equal
similar triangles
itself
8. Angles that equal 180 degrees
the last digit is either 0 or 5
1.7
acute angle
supplementary angles
9. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
sphere
x>y and w>z
similar triangles
area of a triangle
10. y<x
when finding a solution set
even
x>y
no solutions
11. If two lines are parallel - the slope of one is
always positive or zero
±vx
equal to the slope of the other
x + y
12. (x+y)(x+y)= (x+y)²
xy + xz
x²+ 2xy+y²
isosceles
cube
13. The quotient of any quantity (except 0) divided by zero is infinity
acute angle
never divide by zero
opposite the greatest side
midpoint of a line segment joining 2 parts
14. Product of an even number and any other number is
approx square roots
xy>0
1 - 3 - 5 - 7 - 9
even
15. If ?B > ?A - then
then side b > side a
vertical angles
x+y/xy
approx sums
16. The whole equals
properties of a rhombus
a set
the perpendicular distance
the sum of parts
17. Sin 45°
determining if a number is prime
x>y and w>z
b is the y-intercept
v2/2 or .71
18. C times as old as john
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183
19. When the elements of a set are ordered pairs
x<0
relation
altitude of a triangle
vertical angles
20. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
hexagon
percent
vertical angles
right triangle
21. Any arc length is less than
if the last digit of the number is 0 -2 -4 -6 -8
average
x + y
360 degrees
22. A<x and x<b
even
a<x<b
combinations
equal angles
23. x+w> y+z
circle
x>y and w>z
isosceles
commutative axiom of addition and multiplication
24. 90°
slope of a line joining two points
right angle
xy>0
coinciding lines
25. ?
n percent less than x
is a subset of
the square of x
right triangle
26. | |
relation
equilateral triangle
x - y
parallel
27. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
obtuse angle
right triangle
xy< 0
trapezoid
28. 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
circle
standard deviation
right triangle
quadratic equations
29. x > y or y< x
find the intersection of two sets
x is greater than y
angle inscribed in semicircle
v2/2 or .71
30. Wx>wy
w>0 and x>y
right triangle
a side< b side
regular polygon properties
31. x/100
v3/2 or .87
x²+ 2xy+y²
right triangle
x%
32. The product of an even number of negative numbers is
quadratic equations
positive
right triangle
when finding a solution set
33. The angles opposite to sides that are equal in length have
x²-2xy+y²
equal angles
then side b > side a
similar triangles
34. 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
(x/100)m= n
approx square roots
x>y
greater than c
35. 2k + 1
cylinder
expression of an odd number
+y
x + y
36. 1/2bh
area of a triangle
one solution
the last three numbers are divisible by 8
a
37. y years ago
-y
x-y/xy
slope of a line joining two points
cylinder
38. Write down every member in one or both of the sets - the union of two sets is a new set. the union of set A and B is written as A?B
right triangle
finding the union of sets
distributive axiom
determining if a number is prime
39. 5-12-13
inverse of a relation
standard deviation
right triangle
coinciding lines
40. Sin 30°
1/2
y-x
cylinder
even
41. 1-v3- 2 (90-30-60)
radius of a circle
straight angle
(y-x/x)100
right triangle
42. 180°
x - y
straight angle
b+d>c+e
(x/100)m= n
43. 1/y-1/x x -y ? 0
x-y/xy
xy>0
angle bisector
parallel
44. The sum of the interior angles is
the percent of increase
y-x
y angle< x angle
180 degrees
45. 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)
combinations
hexagon
v3/2 or .87
then side b > side a
46. If under the operation - any two members of the set constitute an element of the set ( * the product of the elements multiplied by themselves must also be an element of the set*)
simultaneous equations
rectangular solid
closed set
associative axiom of addition and multiplication
47. 2k
set
determining if a number is prime
if two sets have no elements in common
expression of an even number
48. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
y angle< x angle
greater than c
cylinder
range of a relation
49. ?
medians of a triangle
implies
any variable
Axioms
50. 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
angle inscribed in semicircle
w<0 and x>y
always positive or zero
approx products
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