6.8-meter-long iron bar is welded into a cuboid with a height of 7 decimeters and a width of 5 decimeters. What is the volume of this cuboid?
用6.8米长的铁条焊接成一个高为7分米，宽为5分米的长方体，问这个长方体体积是多少？
<gadget id="calculator">10 / 4</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">6.8 * (5/2)</gadget>
<output>17</output>

<gadget id="calculator">7 + 5</gadget>
<output>12</output>

<gadget id="calculator">17 - 12</gadget>
<output>5</output>

<gadget id="calculator">5 * 5 * 7</gadget>
<output>175</output>

<result>175</result>