Tim has 30 less apples than Martha, and Harry has half as many apples as Tim. If Martha has 68 apples, how many apples does Harry have?
Tim has 68-30 = 
<gadget id="calculator">68-30</gadget>
<output>38</output>
38 apples.
Harry has 38/2 = 
<gadget id="calculator">38/2</gadget>
<output>19</output>
19 apples.

<result>19</result>