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Praxis II_ Math (5003)
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Praxis II_ Math (5003)
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Praxis II: Math (5003)Integers
Positive and Negative Whole Numbers; Includes 0
Prime Number
A whole number greater than 1 that only has two factors (itself and 1)
Composite Number
A whole number greater than 1 that has more than two different factors
Rational Numbers
All integers, decimals and fractions; any terminating or repeating decimal number
Irrational Numbers
Cannot be written as fractions or decimals because the number of decimal places is
infinite and there is no recurring pattern of digits within the number (e.g. pi)
Real Numbers
Set of all rational and irrational numbers
Order of Operations
PEMDAS
M/D and A/S are worked left to right in order
Commutative Property
The order of two numbers may be switched around and the answer is the same
*THINK COMMUTE = move
Associative Property
Grouping numbers together does not change the value *THINK ASSOCIATE = group
, Distributive Property
a(b + c) = ab + ac
Additive Identity Property
a+0=a
Additive Inverse Property
Any (+) number added to its opposite (-) is equal to zero
Multiplicative Identity Property
1 is the multiplicative identity such that a x 1=a
Multiplicative Inverse Property
"Reciprocal"
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