Qiangqiang bought 4 pieces of the same undershirt for 100 yuan, and there is 12 yuan left. How much is each such undershirt?
强强用100元钱买了4件同样的汗衫，还剩12元钱，这样的汗衫每件多少元钱？
<gadget id="calculator">100 - 12</gadget>
<output>88</output>

<gadget id="calculator">88 / 4</gadget>
<output>22</output>

<result>22</result>