The little monkey picked 18 peaches, and the big monkey picked three times as many peaches as the little monkey. How many more peaches did the big monkey pick than the little monkey?
小猴采了18个桃子，大猴采的个数是小猴的3倍，大猴比小猴多采了多少个桃子？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">18 * 2</gadget>
<output>36</output>

<result>36</result>