Use a 60 cm long iron wire to weld a cuboid teaching aid that is 6 cm long, 4 cm wide, and how many centimeters high.
用一根60厘米长的铁丝，正好可以焊成长6厘米，宽4厘米，高多少厘米的长方体教具．
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

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

<gadget id="calculator">15 - 10</gadget>
<output>5</output>

<result>5</result>