A parallelogram plate has a base length of 8dm and a height of 6dm. The steel plate weighs 0.4 kg per square decimeter. How much does this steel plate weigh?
一块平行四边形钢板，底长8dm，高6dm．每平方分米钢板重0.4千克，这块钢板重多少千克？
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">0.4 * 48</gadget>
<output>19.2</output>

<result>19.2</result>