A batch of fruit is transported, and two vehicles, A and B, have been transported 9 times. Vehicle A has transported 126 tons, and vehicle B has transported 108 tons. How many tons more is transported by vehicle A than vehicle B each time? (answer in two ways)
运一批水果，甲乙两车9次运完，甲车运了126吨，乙车运了108吨，甲车平均每次比乙车多运多少吨？(用两种方法解答)
<gadget id="calculator">126 / 9</gadget>
<output>14</output>

<gadget id="calculator">108 / 9</gadget>
<output>12</output>

<gadget id="calculator">14 - 12</gadget>
<output>2</output>

<result>2</result>