Write 1, 2, 3, 4, 5, 6 on each face of a cube. If you toss 120 times, what is the approximate number of times 3 appears?
一个正方体的各个面分别写1，2，3，4，5，6．投掷120次，出现3的次数约是多少次．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">120 * (1/6)</gadget>
<output>20</output>

<result>20</result>