Answer
Commutative properties:
For any two real numbers a and b,
$ a+b=b+a,\qquad$ (addition is commutative)
$ ab=ba,\qquad$ (multiplication is commutative)
(for examples, please see below)
Work Step by Step
Commutative properties:
For any two real numbers a and b,
$ a+b=b+a,\qquad$ (addition is commutative)
$ ab=ba,\qquad$ (multiplication is commutative)
In words, exchanging places when adding (or multiplying) has no effect on the result.
Examples
$5+3=3+5=8$
$12+18=18+12=30$
$5\times 8=8\times 5=40$
$12\times 18=18\times 12=216$
