The four numbers 3, 4, 6, and 10 are used for four arithmetic operations, and each number is used only once to make the result equal to 24.
3、4、6、10这四个数字进行四则运算，每个数只用一次，使其结果等于24．
<gadget id="calculator">10 - 6</gadget>
<output>4</output>

<gadget id="calculator">4 + 4</gadget>
<output>8</output>

<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<result>24</result>