There were 80 cars in a parking lot. At lunchtime, 13 cars left the parking lot but 5 more cars went in than left. How many cars are in the parking lot now?
There are 80 - 13 = 
<gadget id="calculator">80-13</gadget>
<output>67</output>
67 cars in the parking lot after 13 went out.
13 + 5 = 
<gadget id="calculator">13+5</gadget>
<output>18</output>
18 cars went in the parking lot at lunchtime.
So, there are 67 + 18 = 
<gadget id="calculator">67+18</gadget>
<output>85</output>
85 cars in the parking lot now.

<result>85</result>