A truck loads 3 machine tools and 450 kg parts. Each machine weighs 800 kg. How many kilograms does this truck carry in total
一辆货车装运3台机床和450千克零件．每台机床重800千克．这辆货车共载重多少千克
<gadget id="calculator">3 * 800</gadget>
<output>2_400</output>

<gadget id="calculator">2_400 + 450</gadget>
<output>2_850</output>

<result>2_850</result>