The fifth grade students went on a spring outing and bought some apples and pears. I bought 180 apples, which is 12 less than three times that of Sydney. How many pears did you buy?
五年级学生春游，买了一些苹果和雪梨．买来苹果180个，比雪梨的3倍少12个．买了雪梨多少个？
<gadget id="calculator">12 + 180</gadget>
<output>192</output>

<gadget id="calculator">192 / 3</gadget>
<output>64</output>

<result>64</result>