Arithmetic Course/Number Operation/Multiplication


Addition is the operation of adding (combining) two quantities which can be represented by

A x B


a x b = b x a
a x b x c = a x (b x c) = (a x b) x c


Any number multiply by zero is equal to zero

a + 0 = a

Any number multiply to itself is

a x a = a2

Any negative number multiply by itself is

(-a) x (-a) = a2

Any number multiply to its negative is

a x (-a) = -a2