Using the three numbers 1, 2, 3 and a decimal point, how many different two-digit decimals can be formed? how many
用1、2、3这三个数字和一个小数点，能组成多少个不同的两位小数？多少个
<gadget id="calculator">3 * 2 * 1</gadget>
<output>6</output>

<result>6</result>