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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. ?
approx sums
chord
v2/2 or .71
and
2. Angles that equal 180 degrees
supplementary angles
x<0
polygon
solution set
3. x/100
area of a triangle
x%
right triangle
isosceles
4. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
n percent greater than x
quadratic equations
no solutions
x>y>0 and w>z>0
5. The percent decrease from x to y ( y<x)
±vx
x is greater than y
(x-y/x)100
range of a relation
6. The distance from the center of the circle
radius of a circle
reflex angle
radius
equilateral triangle
7. (amount of increase/original amount) x 100
the percent of increase
equals
belongs to
equal to the slope of the other
8. Set of solutions to an equation
solution set
similar triangles
xy< 0
times
9. 1. round each number being added to one more place than it is being asked. 2. add the rounded numbers. 3. round off the sum to the desired number of places
approx sums
b+d>c+e
simultaneous equations
x>y and w>z
10. ?
equal
(x-y/x)100
circle
is a subset of
11. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
if two sets have no elements in common
x is greater than y
obtuse angle
find the intersection of two sets
12. Sin 45°
properties of a rectangle
if two sets have no elements in common
v2/2 or .71
w>0 and x>y
13. x(y-z)
xy-xz
x<0
the last digit is 0
set
14. (amount of decrease/original amount) x 100
the percent of decrease
inverse of a relation
or
y-x
15. 9-40-41
x²+ 2xy+y²
right triangle
equal to the sum of the measures of the remote exterior angles
triangle or straight line
16. Product of an even number and any other number is
one solution
acute angle
approx products
even
17. The point where the line crosses the y-axis - x will always = 0 in this case
the sum of its digits is divisible by 3
y intercept
x + y
a?n
18. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
equilateral triangle
b is the y-intercept
x>y>0 and w>z>0
properties of a rectangle
19. Sum of two even numbers is
v(x2-x1)²+ (y2-y1)²
even
360 degrees
altitude of a triangle
20. 1/x + 1/y x -y ? 0
hemisphere
triangle or straight line
implies
x+y/xy
21. If ?B > ?A - then
then side b > side a
the sum of its digits is divisible by 3
similar triangles
set
22. x > y or y< x
x is greater than y
equal
x - y
c x (john'S age)
23. y years ago
diagonal of a square
square
equilateral triangle
-y
24. All three sides and all three angles are equal
equilateral triangle
midpoint of a line segment joining 2 parts
inverse of a relation
x>y and w>z
25. Diagonal= sv2
diagonal of a square
parallel
reflex angle
greater than c
26. The distance between two parallel lines or from a point to a line always means
the perpendicular distance
diameter of circle
v(x2-x1)²+ (y2-y1)²
0 - 2 - 4 - 6 - 8
27. The product of an odd number of negative numbers is
180 degrees
triangle or straight line
negative
x percent
28. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
1
angle bisector
simultaneous equations
all acute angles are equal and all obtuse angles are equal
29. 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.
combinations
x + y
odd
altitude of a triangle
30. 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.
x intercept
negative
central angle
sphere
31. Wx>wy
angle a and angle b = angle d
x-y
w>0 and x>y
-y
32. 5-12-13
right triangle
properties of a rhombus
similar triangles
x - y
33. Any integer is divisible by 6 if
it is also divisible by 2 and 3
x - y
standard deviation
the perpendicular distance
34. Side a +side b of a ? is
v3/2 or .87
greater than c
a set
x + y
35. Every set is a subset of
x<0 and z=x+y
itself
b is the y-intercept
xy-xz
36. The measure of an interior angle is
equal to the sum of the measures of the remote exterior angles
right triangle
xy
determining if a number is prime
37. The decrease from x to y
a set
the square of x
no solutions
x-y
38. x + (n/100)x
x>y and y>z
n percent greater than x
xy-xz
n= mx/100
39. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
a<x<b
x>y and w>z
even
40. 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
a
0 - 2 - 4 - 6 - 8
implies
41. Is the set of the first components of the ordered pairs.
equal angles
domain of a relation
1 - 3 - 5 - 7 - 9
angle
42. (x+y)(x+y)= (x+y)²
n percent less than x
even
even
x²+ 2xy+y²
43. Area= s² perimeter= 4s
x is less than y
3.16
range of a relation
square
44. The product of an even number of negative numbers is
properties of a rectangle
xy
triangle or straight line
positive
45. ?
properties of a rectangle
angle
cube
vertical angles
46. All even numbers end in the digits of
all acute angles are equal and all obtuse angles are equal
equals
0 - 2 - 4 - 6 - 8
x<0
47. The point where the line crosses the x-axis - y will always = 0 in this case
x intercept
the square of x
never divide by zero
x-y
48. N is what % of m
n= mx/100
the sum of its digits is divisible by 9
simultaneous equations in 2 unknowns
a<x<b
49. A+b=c+ d=d
a+b+d=c+d
a relation is a function
a?n
it is also divisible by 2 and 3
50. 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}
circle
polygon
percent
when finding a solution set