Raul had $87 to spare so he decided to go to the bookshop. Raul bought 8 comics, each of which cost $4. How much money does Raul have left?
He spent 8 comics * $4/comic = $
<gadget id="calculator">8*4</gadget>
<output>32</output>
32 on comics.
Raul has $87 - $32 = $
<gadget id="calculator">87-32</gadget>
<output>55</output>
55 left.

<result>55</result>