A hot water bottle is 28 yuan, and a teacup is 6 yuan. If you buy a hot water bottle with 100 yuan, how many teacups can you buy with the remaining money?
一个热水瓶28元，一个茶杯6元．用100元钱买一个热水瓶，剩下的钱能买几个茶杯？
<gadget id="calculator">100 - 28</gadget>
<output>72</output>

<gadget id="calculator">72 / 6</gadget>
<output>12</output>

<result>12</result>