Pour 60 liters of water into a fish tank with a length of 6 decimeters, a width of 5 decimeters, and a height of 3 decimeters.
把60升水倒入一个长6分米，宽5分米，高3分米的鱼缸内，水面离水缸还有多少分米．
<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<gadget id="calculator">60 / 30</gadget>
<output>2</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<result>1</result>