The sum of the sides of a cuboid is 40 cm, the length is 5 cm, the width is 3 cm, how many cm is the height?
一个长方体的棱长总和是40厘米，其中长5厘米，宽3厘米，高是几厘米？
<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<result>2</result>