The sum of the sides of a cuboid is 64m, its length is 8m, its width is 5m, what is its height in m
一个长方体棱长之和是64m，它的长是8m，宽5m，它的高是多少m
<gadget id="calculator">64 / 4</gadget>
<output>16</output>

<gadget id="calculator">8 + 5</gadget>
<output>13</output>

<gadget id="calculator">16 - 13</gadget>
<output>3</output>

<result>3</result>