Remember that $\displaystyle{7.1}={7.10}\usepackage{cmbright}\Huge\$ . Now compare the digits of 7.10 and 7.24. The digits in the tens and ones places are the same. Comparing the tenths place, $\displaystyle{1}<{2}\usepackage{cmbright}\Huge\$ , so $\displaystyle{7.10}<{7.24}\usepackage{cmbright}\Huge\$ .