A shoe store comes in with 600 pairs of leather shoes. (1/5) of the total sold in the first week, and 150 pairs in the second week. How many pairs are left?
某鞋店进来皮鞋600双．第一周卖出总数的(1/5)，第二周卖出150双．还剩下多少双？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">600 * (1/5)</gadget>
<output>120</output>

<gadget id="calculator">600 - 120 - 150</gadget>
<output>330</output>

<result>330</result>