Carl buys ten packs of cookies. Each pack of cookies has six cookies inside. Each cookie cost $0.10. How much change does Carl receive if he pay with a $10 bill?
A pack of cookies costs 6 x $0.10 = $
<gadget id="calculator">6*0.1</gadget>
<output>0.6</output>
0.60.
Thus, ten packs of cookies cost 10 x $0.6 = $
<gadget id="calculator">10*0.6</gadget>
<output>6</output>
6.
Therefore, Carl will receive a $10 - $6 = $
<gadget id="calculator">10-6</gadget>
<output>4</output>
4 change.

<result>4</result>