6.25 yuan per kilogram of oranges. My mother bought 14 kilograms of apples and paid 100 yuan. How much should I get back?
每千克橘子6.25元，妈妈买了14千克苹果，付出了100元，应找回多少钱？
<gadget id="calculator">6.25 * 14</gadget>
<output>87.5</output>

<gadget id="calculator">100 - 87.5</gadget>
<output>12.5</output>

<result>12.5</result>