How many square decimeters of boards should a carpenter use to make a cube with a side length of 5 decimeters without a cover?
木工做一只棱长是5分米的正方体无盖木箱至少用木板多少平方分米？
<gadget id="calculator">5 * 5 * 5</gadget>
<output>125</output>

<result>125</result>