There are 70 cookies in a jar. If there are only 28 cookies left after a week, and Paul took out the same amount each day, how many cookies did he take out in four days?
Paul took out a total of 70-28 = 
<gadget id="calculator">70-28</gadget>
<output>42</output>
42 cookies in a week.
Paul took out 42/7 = 
<gadget id="calculator">42/7</gadget>
<output>6</output>
6 cookies out of the jar each day.
Over four days, Paul took out 6*4 = 
<gadget id="calculator">6*4</gadget>
<output>24</output>
24 cookies from the jar.

<result>24</result>