A's number is 9.2, which is 2.5 more than B's number. What is the sum of A's and B's numbers?
甲数是9.2，比乙数多2.5，甲、乙两数的和是多少？
<gadget id="calculator">9.2 - 2.5</gadget>
<output>6.7</output>

<gadget id="calculator">6.7 + 9.2</gadget>
<output>15.9</output>

<result>15.9</result>