Use a rope 24 decimeters long to make a cuboid frame whose length is 3 decimeters and width is 2 decimeters. How many decimeters is the height.
用一根长24分米的绳子做一个长方体框架，它的长是3分米，宽是2分米．高是多少分米．
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">6 - 5</gadget>
<output>1</output>

<result>1</result>