8 trucks transport a batch of goods, each truck weighs 4 tons and holds 2 tons of goods. How many tons do these trucks and goods weigh together?
8辆卡车运输一批货物，每辆卡车自重4吨，装载货物2吨．这些卡车和货物一共重多少吨？
<gadget id="calculator">4 + 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 8</gadget>
<output>48</output>

<result>48</result>