Using a 52 cm long wooden bar, you can just make a cuboid wooden frame with a length of 6 cm, a width of 4 cm, and a height of how many cm.
用一根52厘米长的木条，恰好可以做一个长6厘米，宽4厘米，高多少厘米的长方体木框．
<gadget id="calculator">52 / 4</gadget>
<output>13</output>

<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<gadget id="calculator">13 - 10</gadget>
<output>3</output>

<result>3</result>