It is known that 100 yen is exchanged for 8 yuan, and how much Japanese yen can my mother exchange for 2,000 yuan.
已知100日元兑换人民币8元，妈妈用2000元人民币约可兑换多少日元．
<gadget id="calculator">2_000 / 8</gadget>
<output>250</output>

<gadget id="calculator">250 * 100</gadget>
<output>25_000</output>

<result>25_000</result>