There are 38 apples and 14 pears, how many pears should be added, the number of pears is three times that of apples.
苹果有38颗，梨有14颗，还要添多少颗梨，梨的颗数就是苹果的3倍．
<gadget id="calculator">38 * 3</gadget>
<output>114</output>

<gadget id="calculator">114 - 14</gadget>
<output>100</output>

<result>100</result>