A store offers stationery products at a discount. Buy 8 ballpoint pens and only charge 7 ballpoint pens (buy 7 get 1 free). The school buys 112 ballpoint pens, and only needs to pay for the number of ballpoint pens.
某商店优惠供应文具用品，买8支圆珠笔只收7支圆珠笔的钱(买7送1)．学校买来112支圆珠笔，只要付多少支圆珠笔的钱．
<gadget id="calculator">112 / 8</gadget>
<output>14</output>

<gadget id="calculator">112 - 14</gadget>
<output>98</output>

<result>98</result>