Exam (elaborations)
ILTS 305 Math.
- Course
- Institution
Exam of 10 pages for the course ACI Certification at ACI Certification (ILTS 305 Math.)
[Show more]
Seller
Follow
modockochieng06
Content preview
ILTS 305 MathNumber - correct answer-basic building block
integer - correct answer-All whole numbers (both positive and negative) and zero.
prime number - correct answer-A whole number that has exactly two factors, 1 and itself.
composite number - correct answer-A whole number greater than 1 that has more than two
factors.
rational number - correct answer-A number that can be written as a fraction
irrational number - correct answer-a number that can NOT be expressed as a ratio of two
integers or as a repeating or terminating decimal - Pi or any square root of an imperfect
square are considered irrational
Number line - correct answer-
absolute value - correct answer-The distance a number is from zero on a number line
divisor - correct answer-The number by which another number is divided.
quotient - correct answer-the answer to a division problem
Parenthesis - correct answer-
Exponet - correct answer-number that represents the number of times the base is used as a
factor
root - correct answer-a solution of an equation
perfect square - correct answer-a square of a whole number
order of operations - correct answer-PEMDAS (parenthesis, Exponents, Multiplication,
Division, Addition, Subtraction)
common factor - correct answer-Any common factor of two or more numbers.
prime factorization - correct answer-a number written as the product of all its prime factors
GCF (Greatest Common Factor) - correct answer-the greatest number that is a factor of two
or more numbers
least common multiple (LCM) - correct answer-The smallest multiple (other than zero) that
two or more numbers have in common.
, fraction - correct answer-part of a whole
numerator - correct answer-the top number in a fraction
denominator - correct answer-The bottom number in a fraction
equivelent fractions - correct answer-when one fraction is equal to another.
common denominator - correct answer-A denominator that is the same in two or more
fractions.
Adding and Subtracting Fractions - correct answer-make denominator same number then
add or subtract across
Multiplying Fractions - correct answer-1. Multiply the numerators.
2. Multiply the denominators.
Dividing Fractions - correct answer-To divide fractions, invert the second one and multiply
Multiplying mixed numbers - correct answer-Change to an improper fraction and multiply;
then change the answer, if in improper form, back to a mixed number and reduce if
necessary.
Example: 3 1/3 x 2 1/4 = 10/3 x 9/4 = 90/12 =
7 6/12 = 7 1/2`
adding and subtracting decimals - correct answer-Line up the decimal points and proceed as
usual
Multiplying Decimals - correct answer-Ignore the decimal point until the answer. Count the
number of Decimal places in both factors. Use that number of decimal places to write the
answer.
Dividing Decimals - correct answer-Move the decimal to the right on both numbers until there
is nothing to the right of the decimal
percentages - correct answer-part = (percent / 100) x whole
e.g. 7 + 9 + 4 = 20, what % is 4 of whole.
4/20 = (4x5)/(20x5) = =20%
direct proportion - correct answer-a relationship between two variables in which their ratio is
constant
inverse proportion - correct answer-a relation between two quantities such that one
increases in proportion as the other decreases.
ratio - correct answer-A comparison of two quantities by division
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now