Xiao Pang has a bag of chocolates and eats 270 pieces, which is 30 times more than the rest. How many pieces of chocolate are left in this bag?
小胖有一袋巧克力，吃掉270粒，比剩下的3倍多30粒，这袋巧克力还剩下多少粒？
<gadget id="calculator">270 - 30</gadget>
<output>240</output>

<gadget id="calculator">240 / 3</gadget>
<output>80</output>

<result>80</result>