the temperature was $-13 \\, ^\\circ\\text{f}$ and then rose to $5 \\, …

$the temperature was $-13 \\, ^\\circ\\text{f}$ and then rose to $5 \\, …$

the temperature was $-13 \\, ^\circ\text{f}$ and then rose to $5 \\, ^\circ\text{f}$. what was the change in temperature?

Change = Final Temp - Initial Temp

Change = $5 - (-13)$

$5 + 13 = 18$

18 °F