Nancy wanted to make peanut butter cookies for a family gathering, but her cousin is allergic to peanuts. She decided to make almond butter cookies instead. A jar of almond butter costs three times the amount that a jar of peanut butter does. It takes half a jar to make a batch of cookies. A jar of peanut butter costs $3. How many dollars more does it cost per batch to make almond butter cookies instead of peanut butter cookies?
A jar of almond butter costs 3 * 3 = $
<gadget id="calculator">3*3</gadget>
<output>9</output>
9.
It takes half a jar to make a batch of cookies, so it costs 9 / 2 = $
<gadget id="calculator">9/2</gadget>
<output>9/2 = around 4.5</output>
4.50 to use almond butter.
It costs 3 / 2 = $
<gadget id="calculator">3/2</gadget>
<output>3/2 = around 1.5</output>
1.50 to use peanut butter.
Thus, it costs 4.50 - 1.50 = $
<gadget id="calculator">4.50-1.50</gadget>
<output>3</output>
3 more to make a batch of almond butter cookies than peanut butter cookies.

<result>3</result>