Reasoning UPDATED ACTUAL Exam
Questions and CORRECT Answers
Natural Number - CORRECT ANSWER - greater than 0, has no decimal or fraction
attached
Ex) 1,2,3
Whole Number - CORRECT ANSWER - natural numbers and the number zero
Integers - CORRECT ANSWER - positive and negative natural numbers and 0
Rational Number - CORRECT ANSWER - can be fractions, decimals must terminate or
repeat
Irrational Number - CORRECT ANSWER - can't be fractions; never ends and never
repeats
Real number - CORRECT ANSWER - number that can be represented by a point on a
number line
Imaginary Number - CORRECT ANSWER - imaginary unit "I" where I = square root of -
1
Complex number - CORRECT ANSWER - from a+bi where a and b are real numbers
Factors - CORRECT ANSWER - all the numbers that can multiply together to make the
number
, Prime numbers - CORRECT ANSWER - divisible by itself and 1
Composite numbers - CORRECT ANSWER - more than 2 factors
Prime Factorization - CORRECT ANSWER - writing numbers as products of prime
numbers
Properties of number systems - CORRECT ANSWER - - rational numbers are closed
under all 4 operations except division
- Real numbers are closed under all 4 operations
- Complex numbers are closed under all 4 operations
- Irrational numbers are not closed under any of the 4 operations
Commutative property - CORRECT ANSWER - ab=ba
Associative Property - CORRECT ANSWER - a+(b+c) = (a+b)+c
Distributive Property - CORRECT ANSWER - a(b+c) = ab+ac
Identity Property - CORRECT ANSWER - a*1=a or a+0=a
Inverse Property - CORRECT ANSWER - a+(-a)=0 so a=1/a
Order of Operations - CORRECT ANSWER - PEMDAS
Length - CORRECT ANSWER - inch/foot/yard/mile (m)
Mass - CORRECT ANSWER - ounce/pound/tons (g)