The number A is 5.5 greater than the number B, the number A is 13.6, what is the number B?
甲数比乙数大5.5，甲数是13.6，乙数是多少．
<gadget id="calculator">13.6 - 5.5</gadget>
<output>8.1</output>

<result>8.1</result>