If 2 cats catch 2 mice in 2 days, how many mice will 10 cats catch in 10 days?
2只猫2天捉2只老鼠，10只猫10天捉多少只老鼠．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">2 * 5 * 5</gadget>
<output>50</output>

<result>50</result>