Hermione, Luna, and Celestia combined have 83 spelling badges. If Hermione has 14 and Luna has 17, how many spelling badges does Celestia have?
Combining Hermione and Luna has 14 + 17 = 
<gadget id="calculator">14+17</gadget>
<output>31</output>
31 spelling badges.
Removing their spelling badges from the total, Celestia has 83 - 31 = 
<gadget id="calculator">83-31</gadget>
<output>52</output>
52 spelling badges.

<result>52</result>