There are 50 staplers in the stapler.  Stacie staples 3 dozen reports on her desk.  How many staplers are left in the stapler?
Stacie staples 3 x 12 = 
<gadget id="calculator">3*12</gadget>
<output>36</output>
36 reports.
There are 50 - 36 = 
<gadget id="calculator">50-36</gadget>
<output>14</output>
14 staplers left in the stapler.

<result>14</result>