The weight of a cow is 0.45 tons, and the weight of an elephant is 0.02 tons more than 8 times the weight of the cow. How many tons does the elephant weigh?
一头牛的体重是0.45吨，一头大象的体重是这头牛体重的8倍还多0.02吨，这头大象重多少吨？
<gadget id="calculator">0.45 * 8</gadget>
<output>3.6</output>

<gadget id="calculator">3.6 + 0.02</gadget>
<output>3.62</output>

<result>3.62</result>