Mathematics Praxis
7813 – CKT Exam
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,integer
Positive and Negative Whole Numbers and 0. Examples: .... -3, -2, -1, 0, 1, 2, 3
............................................................................................................................................(Does not
include fractions or decimals)
divisible by 1 without a remainder
whole number
0, 1, 2, 3, ...
*INCLUDES 0*
natural numbers
1,2,3
*also known as counting numbers
**whole numbers without 0
rational numbers
Any number that can be expressed as a fraction of two integers
** integers and whole numbers are rational number
, prime numbers
a number which can only be divided by itself
and 1 ex: 2, 3, 5, 7, 11, ...
composite numbers
3 or more
factors ex: 4, 6,
8, 9, 10, ...
composition of numbers
the ability to find the total, or sum, by combining two or more numbers - addition
decomposition of numbers
the ability to take one number away from another - subtraction
_____x______=_______
factor x factor = product
All integers are ...
rational numbers
rational x rational =
rational