A is 10, A is 1 times more than B, how much is B.
甲是10，甲比乙多1倍，乙是多少．
<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<result>5</result>