A cow weighs about 0.65 tons, and an elephant weighs 0.3 tons less than six times that of a cow. How many tons does an elephant weigh?
一头牛约重0.65吨，一头大象的重量比一头牛的6倍少0.3吨，一头大象约重多少吨？
<gadget id="calculator">0.65 * 6</gadget>
<output>3.9</output>

<gadget id="calculator">3.9 - 0.3</gadget>
<output>3.6</output>

<result>3.6</result>