There are 25 black rabbits, and 6 white rabbits twice as many as black rabbits. How many white rabbits are there?
黑兔有25只，白兔的只数比黑兔的2倍多6只，白兔有多少只？
<gadget id="calculator">25 * 2</gadget>
<output>50</output>

<gadget id="calculator">50 + 6</gadget>
<output>56</output>

<result>56</result>