There are three cards with 1, 2, and 3 written on them. What is the probability that the three-digit number displayed by these three cards is an even number?
有三张卡片，上面分别写着1，2，3，用这三张卡片摆出的三位数是偶数的可能性是多少．
<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>