Elephants can live 80 years, turtles live 60 years less than three times the number of elephants, how many more years can turtles live than elephants? How many
大象可以活80年，海龟活的年数比大象活的年数的3倍少60年，海龟比大象多活多少年？多少
<gadget id="calculator">80 * 3</gadget>
<output>240</output>

<gadget id="calculator">240 - 60 - 80</gadget>
<output>100</output>

<result>100</result>