Alice has 6 more books than Steven. Clara has two times as many books as Steven. If Clara has 20 books, how many more books does Clara have than Alice?
Steven has 20/2 = 
<gadget id="calculator">20/2</gadget>
<output>10</output>
10 books.
Alice has 10+6 = 
<gadget id="calculator">10+6</gadget>
<output>16</output>
16 books.
Clara has 20-16 = 
<gadget id="calculator">20-16</gadget>
<output>4</output>
4 more books than Alice.

<result>4</result>