A's number is 64, which is six times more than B's number by 4. What is B's number?
甲数是64，是乙数六倍还多4，乙数是多少．
<gadget id="calculator">64 - 4</gadget>
<output>60</output>

<gadget id="calculator">60 / 6</gadget>
<output>10</output>

<result>10</result>