Properties of Real Numbers

• Commutative Property: For all real numbers a and b:

$$a + b\; = b + a$$

$$a \times b\; = b \times a$$

Order doesn't matter in addition or multiplication of real numbers.

• Associative Property: For all real numbers a and b:

$$(a + \;b) + \;c...

Sets of Numbers

• The Set N of Natural Numbers

• The Set Z of Integers

$${\rm{Z = \{ }}...{\rm{ , - 3, - 2, - 1, 0,1,2,3, }}...{\rm{ \} }}$$

• The Set Z⁺...