We use □*◇ to mean "the sum of the number □ and the number ◇ is divided by 3", for example: 4*8=(4+8)/3=4; if 5*X=10, then X=how much.
我们用□*◇表示"数□与数◇的和除以3"，例如：4*8=(4+8)/3=4；如果5*X=10，那么，X=多少．
<gadget id="calculator">10 * 3</gadget>
<output>30</output>

<gadget id="calculator">30 - 5</gadget>
<output>25</output>

<result>25</result>