The golfer's score can be represented by $\displaystyle-{1}+{3}+{\left(-{2}\right)}+{0}+{3}=-{1}+{3}+{\left(-{2}\right)}+{3}\usepackage{cmbright}\Huge\$ , using the identity property of zero. First add the negative numbers. The sum of their absolute values is $\displaystyle{2}+{1}={3}\usepackage{cmbright}\Huge\$ . Then add a negative sign to get $\displaystyle-{3}\usepackage{cmbright}\Huge\$ . Then add $\displaystyle-{3}+{3}+{3}\usepackage{cmbright}\Huge\$ , or $\displaystyle-{3}+{6}\usepackage{cmbright}\Huge\$ . The difference of their absolute values is $\displaystyle{6}-{3}={3}\usepackage{cmbright}\Huge\$ , and the sum must be positive (because 6 is bigger than 3). So the golfer was over par by 3 strokes.