The sum of the sides of a cuboid is 6 meters, the length is 8 decimeters, and the width is 5 decimeters. What is the volume of this cuboid?
长方体棱长之和是6米，长8分米，宽5分米，这个长方体的体积是多少？
<gadget id="calculator">10 / 4</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">6 * (5/2)</gadget>
<output>15</output>

<gadget id="calculator">15 - 8 - 5</gadget>
<output>2</output>

<gadget id="calculator">8 * 5 * 2</gadget>
<output>80</output>

<result>80</result>