A cuboid iron block is 10 decimeters long, 5 decimeters wide, and 4 decimeters high. Each cubic decimeter of iron weighs 7.8 kg. How much does this iron block weigh?
一个长方体铁块，长10分米，宽5分米，高4分米，每立方分米铁块重7.8千克，这个铁块重多少千克？
<gadget id="calculator">10 * 5 * 4 * 7.8</gadget>
<output>1_560</output>

<result>1_560</result>