Max needs 65 paper plates for the barbecue party.  He already has 22 green paper plates and 24 blue paper plates. How many more paper plates does he need?
He already has a total of 22 + 24 = 
<gadget id="calculator">22+24</gadget>
<output>46</output>
46 paper plates.
Therefore, Max needs 65 - 46 = 
<gadget id="calculator">65-46</gadget>
<output>19</output>
19 more paper plates.

<result>19</result>