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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. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
altitude of a triangle
the percent of increase
two solutions
pythagorean theorem
2. 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
a
the percent of decrease
always positive or zero
approx square roots
3. x/100
x%
medians of a triangle
a+b+d=c+d
b+d>c+e
4. (sum of individual quantities or measures/ total number of quantities or measures)
simultaneous equations
rectangular solid
x²-y²
average
5. Any integer is divisible by 9 - if
the sum of its digits is divisible by 9
+y
y-x
properties of a rhombus
6. 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
n percent greater than x
approx products
probability
x²-2xy+y²
7. x +z > y+z
1.4
expression of an even number
equal angles
x>y
8. Is the relation with ALL ordered pairs REVERSED.
average
rectangle
inverse of a relation
diagonal of a square
9. 360°
right triangle
circle
x²+ 2xy+y²
v2/2 or .71
10. x > y or y< x
probability
x is greater than y
positive
one solution
11. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
inscribed angle
1
set
±vx
12. Area = ?r² circumference(perimeter)= 2?r
circle
domain of a relation
slope of a line joining two points
percent
13. x+w> y+z
x>y and w>z
isosceles triangle
the last three numbers are divisible by 8
all acute angles are equal and all obtuse angles are equal
14. 5+3= 3+5 and 5 x 3= 3 x 5
a set
coinciding lines
commutative axiom of addition and multiplication
distributive axiom
15. Between 180° and 360°
reflex angle
360 degrees
angle inscribed in semicircle
right triangle
16. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
w<0 and x>y
v(x2-x1)²+ (y2-y1)²
v3/2 or .87
semicircle
17. z>y
acute angle
right triangle
right triangle
x<0 and z=x+y
18. 5-12-13
right triangle
n percent greater than x
finding the union of sets
a relation is a function
19. The point where the line crosses the x-axis - y will always = 0 in this case
x intercept
y angle< x angle
(x/100)m= n
regular polygon properties
20. Intersect at only one point - the point is the only solution to the pair of equations
w>0 and x>y
finding the union of sets
consistent lines
reflex angle
21. y years ago
negative reciprocal of the other
properties of parallelograms
reflex angle
-y
22. Any line that connects two points on a circle.
equals
chord
regular polygon properties
probability
23. If an equation can be put into the form y= mx +b - then
n= mx/100
b is the y-intercept
relation
the sum of its digits is divisible by 3
24. y years from now
Axioms
a?n
+y
central angle
25. A/A¹ = B/B¹= C/C¹
set
similar triangles
if the last digit of the number is 0 -2 -4 -6 -8
v(x2-x1)²+ (y2-y1)²
26. 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
perpendicular
a
standard deviation
right angle
27. y<x
x>y
supplementary angles
v2/2 or .71
equal
28. ?
x intercept
22/7 or 3.14
v3/2 or .87
x<0 and z=x+y
29. C²= a²+b² and angle x and y are equal to 90°
the last digit is either 0 or 5
inscribed angle
right triangle
+y
30. Integer is divisible by 2
if the last digit of the number is 0 -2 -4 -6 -8
the last digit is 0
(x/100)m= n
determining if a number is prime
31. Sin 45°
midpoint of a line segment joining 2 parts
w<0 and x>y
v2/2 or .71
then side b > side a
32. Product of two odd numbers is
odd
x²+ 2xy+y²
quadratic equations
(y-x/x)100
33. Ax= by + C
always positive or zero
simultaneous equations in 2 unknowns
regular polygon properties
22/7 or 3.14
34. 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.
standard deviation
inscribed angle
medians of a triangle
slope of a line joining two points
35. (x+y) (x-y)
equal to the slope of the other
b is the y-intercept
x²-y²
+y
36. ?
implies
180 degrees
w>0 and x>y
the last digit is 0
37. 9-40-41
x intercept
odd
right triangle
one solution
38. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
associative axiom of addition and multiplication
determining if a number is prime
obtuse angle
finding the union of sets
39. C times as old as john
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40. One angle is equal 90° and the other two angles are equal to the sum of 90°
always positive or zero
all acute angles are equal and all obtuse angles are equal
right triangle
distributive axiom
41. Wx>wy
greater than c
w>0 and x>y
finding the union of sets
right angle
42. The decrease from x to y
x-y
semicircle
acute angle
1
43. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
circle
simultaneous equations
associative axiom of addition and multiplication
inconsistent lines
44. In transversals
all acute angles are equal and all obtuse angles are equal
v3/2 or .87
the square of x
x intercept
45. x(y+z)
a+b+d=c+d
associative axiom of addition and multiplication
xy + xz
two solutions
46. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
equilateral triangle
altitude of a triangle
right triangle
one solution
47. 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
perpendicular bisectors
two solutions
1/2
48. A¹
a
cylinder
properties of a rectangle
always positive or zero
49. 1-v3- 2 (90-30-60)
perpendicular bisectors
permutations
right triangle
the last two digits of the number make a number that is divisible by 4
50. The percent increase from x to y (y>x)
triangle
rectangular solid
22/7 or 3.14
(y-x/x)100