CBEST Exam with 100% Correct
Solutions
To Pass you need: - ANS-at least a 37 in a section (average of 41)
and an overall score of 123
MATH - ANS-
How would you represent probability? - ANS-# of successful events / # of possible
events
How do you convert a decimal to a percent? - ANS-Move decimal 2 places to RIGHT
Or
X by 100
How do you convert a percent to a decimal? - ANS-Move decimal 2 places to the LEFT
Or
divide by 100
How do you calculate percentage change (increase or decrease)? - ANS-change /
starting point X 100
how do you find % of a number? - ANS-put % over 100 then multiply by number when
you see work of
ex
20% of 10 = 20/100 X 80/1 = 1600/100 = 16
how do you find the perimeter of a square, rectangle, parallelogram and triangle? -
ANS-Square = add all sides
Triangle = add all sides
Rectangle = 2(base + h)
Parallelogram = 2(a + b) not height
x^0 =? - ANS-1
Whats the formula for area of a circle?
For the circumference of a circle? - ANS-A = π X r squared
C = πd
OR 2πr
radius = 1/2 diameter
, whats the formula for the area of a triangle?
For the perimeter? - ANS-A = 1/2 base X height
P = s1 + s2 + base (add all sides)
whats the formula to find a hypotenuse angle? - ANS-1. for shorter leg: 2 X shorter leg
2. For longer leg: root of 3 X shorter leg
how do you find the area of a square? the perimeter? - ANS-A = side squared
P = add all 4 sides
whats the formula for volume of a pyramid? For surface area? - ANS-V = 1/3 B(area of
base) X height
SA = 1/2 l (slant height) X perimiter + B
whats the formula for area of a rectangular solid? for surface area? - ANS-V = Lwh
SA = 2lh + 2wh + 2 wl
What is the order of operations when evaluating an equation? - ANS-PEMDAS:
parentheses, exponents, multiplication, division, addition, subtraction
how do you find a discounted price? - ANS-1. subtract discounted price from 100 to get
the percent
2. multiply orig price by subtracted percentage in decimal form
ex. 15% discount
= 100-15= 85%
= orig price X 0.85 = sale price
What formula can be used to find the percent of a number? - ANS-part / whole =
percent / 100
Ex: what part of 16 is 12? = 12/ 16 = x/100
or whats 5% of 10 = x/10 = 5/100
how do you multiply a whole number and a fraction? - ANS-1. rewrite the whole number
as a fraction with 1 as denominator (15/1)
2. multiply numerators of two fractions
3. multiply denom of 2 fractions
4. divide the num and denom
How do you measure slope? - ANS-Rise over run (y - x / y - x)
when do you need a common denominator? - ANS-+ / - / comparing fractions
you do not need a common denominator when multiplying fractions
Solutions
To Pass you need: - ANS-at least a 37 in a section (average of 41)
and an overall score of 123
MATH - ANS-
How would you represent probability? - ANS-# of successful events / # of possible
events
How do you convert a decimal to a percent? - ANS-Move decimal 2 places to RIGHT
Or
X by 100
How do you convert a percent to a decimal? - ANS-Move decimal 2 places to the LEFT
Or
divide by 100
How do you calculate percentage change (increase or decrease)? - ANS-change /
starting point X 100
how do you find % of a number? - ANS-put % over 100 then multiply by number when
you see work of
ex
20% of 10 = 20/100 X 80/1 = 1600/100 = 16
how do you find the perimeter of a square, rectangle, parallelogram and triangle? -
ANS-Square = add all sides
Triangle = add all sides
Rectangle = 2(base + h)
Parallelogram = 2(a + b) not height
x^0 =? - ANS-1
Whats the formula for area of a circle?
For the circumference of a circle? - ANS-A = π X r squared
C = πd
OR 2πr
radius = 1/2 diameter
, whats the formula for the area of a triangle?
For the perimeter? - ANS-A = 1/2 base X height
P = s1 + s2 + base (add all sides)
whats the formula to find a hypotenuse angle? - ANS-1. for shorter leg: 2 X shorter leg
2. For longer leg: root of 3 X shorter leg
how do you find the area of a square? the perimeter? - ANS-A = side squared
P = add all 4 sides
whats the formula for volume of a pyramid? For surface area? - ANS-V = 1/3 B(area of
base) X height
SA = 1/2 l (slant height) X perimiter + B
whats the formula for area of a rectangular solid? for surface area? - ANS-V = Lwh
SA = 2lh + 2wh + 2 wl
What is the order of operations when evaluating an equation? - ANS-PEMDAS:
parentheses, exponents, multiplication, division, addition, subtraction
how do you find a discounted price? - ANS-1. subtract discounted price from 100 to get
the percent
2. multiply orig price by subtracted percentage in decimal form
ex. 15% discount
= 100-15= 85%
= orig price X 0.85 = sale price
What formula can be used to find the percent of a number? - ANS-part / whole =
percent / 100
Ex: what part of 16 is 12? = 12/ 16 = x/100
or whats 5% of 10 = x/10 = 5/100
how do you multiply a whole number and a fraction? - ANS-1. rewrite the whole number
as a fraction with 1 as denominator (15/1)
2. multiply numerators of two fractions
3. multiply denom of 2 fractions
4. divide the num and denom
How do you measure slope? - ANS-Rise over run (y - x / y - x)
when do you need a common denominator? - ANS-+ / - / comparing fractions
you do not need a common denominator when multiplying fractions
