An adult ticket in a certain park is 28 yuan each, and a child ticket is 12 yuan each. How much is the total cost for Xiao Ming, a second grader, to go to the park with his parents?
某公园成人票每张28元，儿童票每张12元，二年级的小明与爸爸妈妈去公园玩，一共要多少元？
<gadget id="calculator">28 * 2</gadget>
<output>56</output>

<gadget id="calculator">56 + 12</gadget>
<output>68</output>

<result>68</result>