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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. B>c+ d>e
probability
b+d>c+e
commutative axiom of addition and multiplication
all acute angles are equal and all obtuse angles are equal
2. Side a +side b of a ? is
greater than c
positive
medians of a triangle
belongs to
3. Sum of two odd numbers is
x<0 and z=x+y
implies
xy
even
4. 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
null set
xy< 0
v3/2 or .87
5. x+w> y+z
x>y and w>z
circle
x + y
equilateral triangle
6. (x+y) (x-y)
range of a relation
x²-y²
x-y
v(x2-x1)²+ (y2-y1)²
7. Wx<wy
relation
x²+ 2xy+y²
w<0 and x>y
w>0 and x>y
8. What % of m is n
properties of a rectangle
odd
regular polygon properties
(x/100)m= n
9. The increase from x to y
xy< 0
y-x
y angle< x angle
the last digit is 0
10. 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.
angle bisector
circle
equal
permutations
11. y years from now
the last two digits of the number make a number that is divisible by 4
+y
cylinder
it is also divisible by 2 and 3
12. Is a rectangular rhombus 1. all four sides are equal 2. opposite pairs of sides are parallel 3. diagonals are equal - are perpendicular to each other - and bisect each other. 4. all the angles are right triangles 5. diagonals intersect the vertices a
properties of a square
itself
x is greater than y
simultaneous equations
13. The angles opposite to sides that are equal in length have
diameter of circle
equal angles
the last digit is either 0 or 5
x>y
14. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
triangle or straight line
find the intersection of two sets
x<0 and z=x+y
b+d>c+e
15. 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
approx square roots
even
cube
expression of an even number
16. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
quadratic equations
xy-xz
inconsistent lines
itself
17. Any integer is divisible by 4 - if
the last two digits of the number make a number that is divisible by 4
and
odd
angle
18. Sin 30°
1/2
simultaneous equations
average
slope of a line joining two points
19. ?
x²+ 2xy+y²
implies
hexagon
inscribed angle
20. ? if a side < b side - then
positive
coinciding lines
y angle< x angle
always positive or zero
21. All even numbers end in the digits of
v(x2-x1)²+ (y2-y1)²
x + y
0 - 2 - 4 - 6 - 8
times
22. The difference between x and y
x<0
x - y
x + y
equal to the slope of the other
23. If the each element of the domain occurs only once as a FIRST component
x is greater than y
±vx
a relation is a function
xy
24. V3
right triangle
22/7 or 3.14
1.7
diameter
25. 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*)
closed set
equal
the last two digits of the number make a number that is divisible by 4
approx square roots
26. Angle whose sides are two radii of the circle. The vertex of this angle is the center of the circle. The number of degrees is equal to the amount of arc length that the radd intercept.
inverse of a relation
central angle
v2/2 or .71
radius of a circle
27. A¹
a
quadratic equations
1.7
equal angles
28. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
x>y
n percent greater than x
x + y
permutations
29. The percent decrease from x to y ( y<x)
n percent less than x
the percent of increase
(x-y/x)100
x%
30. 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
rectangular solid
diameter
midpoint of a line segment joining 2 parts
31. x younger than y
x - y
equal
the perpendicular distance
combinations
32. All three sides and all three angles are equal
right triangle
equilateral triangle
expression of an odd number
simultaneous equations in 2 unknowns
33. Sin 60°
v3/2 or .87
then side b > side a
a set
the percent of decrease
34. The percent increase from x to y (y>x)
(y-x/x)100
perpendicular bisectors
sphere
if the last digit of the number is 0 -2 -4 -6 -8
35. ?
belongs to
approx square roots
w>0 and x>y
equilateral triangle
36. Volume= 4/3?r² surface area= 4?r²
1
null set
sphere
x>y and y>z
37. In a triangle - the greatest angles lies
opposite the greatest side
simultaneous equations
v2/2 or .71
the percent of decrease
38. /100 (the ______ number over 100)
percent
distributive axiom
x>y>0 and w>z>0
w>0 and x>y
39. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
midpoint of a line segment joining 2 parts
isosceles triangle
simultaneous equations in 2 unknowns
vertical angles
40. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}
when finding a solution set
x²-2xy+y²
x is greater than y
180 degrees
41. 1-v3- 2 (90-30-60)
x-y/xy
triangle
right triangle
circle
42. (amount of increase/original amount) x 100
the percent of increase
triangle
straight angle
n= mx/100
43. Sum of an odd and an even number is
odd
equilateral triangle
equals
the percent of increase
44. 8-15-17
the perpendicular distance
right triangle
equilateral triangle
xy< 0
45. V2
properties of a rhombus
the third side
xy>0
1.4
46. The sume of x and y
x²+ 2xy+y²
x + y
1
polygon
47. x older than y
x + y
x-y
diameter of circle
x²-2xy+y²
48. 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)
the sum of its digits is divisible by 9
probability
similar triangles
even
49. Of
x+y/xy
diameter of circle
times
radius
50. Then their intersection is the null or empty set - written as Ø
if two sets have no elements in common
n percent less than x
expression of an odd number
1.4