Mom brought 100 yuan, 38.25 yuan was used to buy stationery, and 46.50 yuan was used to buy milk. How much money is left?
妈妈带了100元钱，买文具用去38.25元，买牛奶用去46.50元，还剩多少元？
<gadget id="calculator">38.25 + 46.5</gadget>
<output>84.75</output>

<gadget id="calculator">100 - 84.75</gadget>
<output>15.25</output>

<result>15.25</result>