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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. 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
the last two digits of the number make a number that is divisible by 4
right triangle
x + y
2. Product of two odd numbers is
solution set
determining if a number is prime
odd
xy>0
3. x more than y
diameter of circle
x + y
negative
central angle
4. 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.
medians of a triangle
it is also divisible by 2 and 3
right triangle
w>0 and x>y
5. Sin 45°
x+y/xy
v2/2 or .71
equal angles
tangent
6. Product of an even number and any other number is
times
equals
right triangle
even
7. Intersect at only one point - the point is the only solution to the pair of equations
consistent lines
inconsistent lines
obtuse angle
a?n
8. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
circle
right triangle
distributive axiom
quadratic equations
9. When two parallel lines are crossed by a third straight line (transversal) - then
x>y and y>z
belongs to
probability
all acute angles are equal and all obtuse angles are equal
10. 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*)
two solutions
closed set
radius
the perpendicular distance
11. A chord through the center of the circle
equal to the slope of the other
diameter
angle inscribed in semicircle
positive
12. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
trapezoid
n= mx/100
x and y
triangle or straight line
13. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
odd
right triangle
pythagorean theorem
xy-xz
14. Any integer is divisible by 10 - if
x<0 and z=x+y
the last digit is 0
the last digit is either 0 or 5
circle
15. xn<0 if n is odd and xn>0 if n is even
permutations
x<0
w>0 and x>y
1/2
16. 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 -
angle inscribed in semicircle
determining if a number is prime
the sum of its digits is divisible by 3
b is the y-intercept
17. (amount of increase/original amount) x 100
equal to the slope of the other
percent
domain of a relation
the percent of increase
18. Any number squared or raised to an even power is
always positive or zero
permutations
properties of a square
1.4
19. (x+y)(x+y)= (x+y)²
equilateral triangle
any variable
even
x²+ 2xy+y²
20. Any integer is divisible by 9 - if
set
the sum of its digits is divisible by 9
a+b+d=c+d
parallel
21. 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
two solutions
supplementary angles
hemisphere
22. xw> yz
determining if a number is prime
x>y>0 and w>z>0
even
±vx
23. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
associative axiom of addition and multiplication
x - y
positive
one solution
24. A+b=c+ d=d
slope of a line joining two points
semicircle
x%
a+b+d=c+d
25. Any integer is divisible by 4 - if
find the intersection of two sets
y intercept
the last two digits of the number make a number that is divisible by 4
any variable
26. V10
central angle
3.16
average
the square of x
27. 2k
approx sums
expression of an even number
equals
permutations
28. A°
reflex angle
right triangle
1
vertical angles
29. Any integer is divisible by 8 if
c x (john'S age)
medians of a triangle
rectangular solid
the last three numbers are divisible by 8
30. 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
hemisphere
right angle
properties of a square
all acute angles are equal and all obtuse angles are equal
31. Area= 1/2bh perimeter= a+b+c
triangle
is a subset of
Axioms
y-x
32. Of
all acute angles are equal and all obtuse angles are equal
times
x²-y²
x>y
33. If b²-4ac < 0 - there are
polygon
isosceles
no solutions
x%
34. Wx>wy
v3/2 or .87
w>0 and x>y
odd
-y
35. 1/an
a?n
a set
the last two digits of the number make a number that is divisible by 4
odd
36. 5+3= 3+5 and 5 x 3= 3 x 5
area of a triangle
average
commutative axiom of addition and multiplication
equilateral triangle
37. M= y2-y1/x2-x1
the percent of increase
x + y
slope of a line joining two points
circle
38. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
360 degrees
range of a relation
equilateral triangle
midpoint of a line segment joining 2 parts
39. Area = ?r² circumference(perimeter)= 2?r
times
circle
n percent greater than x
inconsistent lines
40. Any integer is divisible by 5 if
straight angle
equilateral triangle
y-x
the last digit is either 0 or 5
41. y years ago
equal to the sum of the measures of the remote exterior angles
-y
w<0 and x>y
triangle
42. Area= s² perimeter= 4s
odd
square
acute angle
domain of a relation
43. 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
equals
3.16
right triangle
approx sums
44. B>c+ d>e
x>y
the sum of its digits is divisible by 9
standard deviation
b+d>c+e
45. x younger than y
opposite the greatest side
diameter of circle
x - y
the last digit is 0
46. x - (n/100)x
implies
isosceles triangle
n percent less than x
area of a triangle
47. 1/2bh
area of a triangle
cylinder
expression of an odd number
relation
48. 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.
xy-xz
perpendicular bisectors
hexagon
tangent
49. The sume of x and y
x + y
the last two digits of the number make a number that is divisible by 4
range of a relation
average
50. (x+y) (x-y)
1 - 3 - 5 - 7 - 9
diameter of circle
commutative axiom of addition and multiplication
x²-y²