A, B, and C go on a trip. A brings 7 loaves of bread, B brings 5 loaves of bread, and C doesn't. The three of them share the loaves equally at noon. After eating, C pays 3 yuan and 2 cents. So how much should A get back?
甲、乙、丙三人外出旅游，甲带了7个面包，乙带了5个面包，丙没有带，中午三人平分面包，吃完后计算，丙给了3元2角钱．那么甲应收回多少元．
<gadget id="calculator">7 + 5</gadget>
<output>12</output>

<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">3.2 / 4</gadget>
<output>0.8</output>

<gadget id="calculator">7 - 4</gadget>
<output>3</output>

<gadget id="calculator">0.8 * 3</gadget>
<output>2.4</output>

<result>2.4</result>