Elementary Education Praxis 5003
Rational numbers - CORRECT ANSWER-Can be expressed as the ratio of two
integers, a/b, where b does not equal 0. For example, 2/3, -4/3, 5/1 = 5
The rational numbers include integers, fractions, and mixed numbers, and
terminating and repeating decimals and can be shown on a number line.
Integers - CORRECT ANSWER-The positive and negative whole numbers and
zero. Ex. -6, -5, -4....0, 1, 2, 3...
Whole numbers - CORRECT ANSWER-The natural numbers and zero
Ex. 0, 1, 2, 3, 4, 5, 6...
Irrational numbers - CORRECT ANSWER-Real numbers that cannot be written
as the ratio of two integers. They are infinite, nonrepeating decimals
Percent - CORRECT ANSWER-A base-ten positional notation system for
numbers
Decimal - CORRECT ANSWER-A number written with a whole number part, a
decimal point, and a decimal part
Commutative property - CORRECT ANSWER-You can change the order of the
terms or factors as follows
*Addition* a + b = b + a
*Multiplication* ab = ba
Associative property - CORRECT ANSWER-You can regroup terms as you like
*Addition* a + (b+c) = (a+b) + c
*Multiplication* a(bc) = ab(c)
Additive identity - CORRECT ANSWER-Finding a number so that when added to
a term results in that number
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