The number $\displaystyle-{8}=-\frac{{8}}{{1}}\usepackage{cmbright}\Huge\$ . Since it can be written as a ratio of two integers, it is a rational number. All rational numbers are real numbers. It is also an integer because it belongs to the set ..., $\displaystyle-{3}\usepackage{cmbright}\Huge\$ , $\displaystyle-{2}\usepackage{cmbright}\Huge\$ , $\displaystyle-{1}\usepackage{cmbright}\Huge\$ , $\displaystyle{0}\usepackage{cmbright}\Huge\$ , $\displaystyle{1}\usepackage{cmbright}\Huge\$ , $\displaystyle{2}\usepackage{cmbright}\Huge\$ , $\displaystyle{3}\usepackage{cmbright}\Huge\$ , $\displaystyle{4}\usepackage{cmbright}\Huge\$ , ... .