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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
cylinder
circle
and
2. 1-v3- 2 (90-30-60)
angle
right triangle
expression of an even number
inscribed angle
3. When the elements of a set are ordered pairs
positive
relation
belongs to
finding the union of sets
4. x more than y
1 - 3 - 5 - 7 - 9
x + y
coinciding lines
b is the y-intercept
5. Diagonals are perpendicular to each other and bisect the vertex angles 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 diagonal
properties of a rhombus
x²+ 2xy+y²
set
acute angle
6. In transversals
pythagorean theorem
all acute angles are equal and all obtuse angles are equal
itself
coinciding lines
7. Ax= by + C
combinations
itself
simultaneous equations in 2 unknowns
right triangle
8. The case where the two equations are equivalent (just two different forms of the same mathematical relation). Any point that satisfies either of the equations - automatically satisfies both
even
diameter of circle
coinciding lines
properties of a square
9. Sin 30°
distributive axiom
null set
1/2
even
10. If an equation can be put into the form y= mx +b - then
find the intersection of two sets
b is the y-intercept
times
right triangle
11. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
finding the union of sets
the last digit is 0
no solutions
equilateral triangle
12. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
1 - 3 - 5 - 7 - 9
x<0 and z=x+y
x - y
find the intersection of two sets
13. Integer is divisible by 2
diagonal of a square
if the last digit of the number is 0 -2 -4 -6 -8
opposite the greatest side
null set
14. If two lines are parallel - the slope of one is
domain of a relation
x - y
straight angle
equal to the slope of the other
15. All sides are equal and all of whose angles are equal. 1. can be inscribed in a circle and can be circumscribed about another circle. 2. each angle is equal to the sum of the angles divided by the number of sides 180(n-2)°/n.
regular polygon properties
x-y
area of a triangle
isosceles triangle
16. What % of m is n
pythagorean theorem
x<0 and z=x+y
(x/100)m= n
360 degrees
17. 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
w>0 and x>y
approx products
x + y
x>y and y>z
18. (x+y) (x-y)
x²-y²
hexagon
the last digit is 0
negative
19. Sin 60°
circle
when finding a solution set
inscribed angle
v3/2 or .87
20. 1-1-1 (60-60-60)
n percent less than x
equilateral triangle
angle inscribed in semicircle
radius
21. Intersect at only one point - the point is the only solution to the pair of equations
triangle or straight line
the perpendicular distance
consistent lines
circle
22. Any integer is divisible by 9 - if
quadratic equations
the sum of its digits is divisible by 9
right triangle
y angle< x angle
23. A line that is perpendicular to a radius and that passes through only one point of the circle.
a set
similar triangles
tangent
pythagorean theorem
24. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
associative axiom of addition and multiplication
180 degrees
x + y
the last digit is either 0 or 5
25. Area = ?r² circumference(perimeter)= 2?r
v(x2-x1)²+ (y2-y1)²
the last two digits of the number make a number that is divisible by 4
when finding a solution set
circle
26. ?
trapezoid
simultaneous equations in 2 unknowns
angle
approx products
27. (x-y)(x-y) = (x-y)²
and
the percent of decrease
never divide by zero
x²-2xy+y²
28. | |
expression of an even number
parallel
one solution
(y-x/x)100
29. x+w> y+z
xy>0
x>y and w>z
the sum of its digits is divisible by 3
square
30. Any integer is divisible by 6 if
x is greater than y
even
consistent lines
it is also divisible by 2 and 3
31. Is a subset of every set
the square of x
null set
right triangle
the sum of its digits is divisible by 9
32. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
solution set
similar triangles
v2/2 or .71
(y-x/x)100
33. 2k
triangle or straight line
expression of an even number
+y
xy>0
34. C times as old as john
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35. A subset of a set is
permutations
a set
belongs to
simultaneous equations in 2 unknowns
36. x < y or y> x
x is less than y
square
right triangle
180 degrees
37. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
a+b+d=c+d
trapezoid
approx square roots
set
38. All even numbers end in the digits of
altitude of a triangle
xy< 0
0 - 2 - 4 - 6 - 8
equilateral triangle
39. Is - as - was - has - cost
x + y
x²-y²
x>y and y>z
equals
40. The angles opposite to sides that are equal in length have
approx square roots
obtuse angle
regular polygon properties
equal angles
41. Set of solutions to an equation
a side< b side
solution set
regular polygon properties
the square of x
42. Any number squared or raised to an even power is
always positive or zero
average
itself
1 - 3 - 5 - 7 - 9
43. 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)
associative axiom of addition and multiplication
x<0
probability
1.7
44. ?
22/7 or 3.14
equilateral triangle
right angle
x>y
45. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
expression of an even number
b+d>c+e
rectangular solid
permutations
46. The distance from the center of the circle
radius
area of a triangle
0 - 2 - 4 - 6 - 8
the percent of decrease
47. Are the lines drawn from each vertex to the midpoint of its opposite side. they cross at a point that divides each individual ______into two parts.
odd
simultaneous equations
circle
medians of a triangle
48. 1/2d
equilateral triangle
radius of a circle
even
+y
49. xn<0 if n is odd and xn>0 if n is even
(y-x/x)100
x<0
properties of a rectangle
radius
50. 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.
equal to the slope of the other
properties of a rectangle
medians of a triangle
angle bisector