In early April, Sunshine Primary School held a spring sports meeting. Wang Gang participated in the 100-meter running competition on behalf of Class 51. His final score was 11.8 seconds, which was 0.3 seconds higher than the preliminaries, and he won the championship. How many seconds did Wang Gang score in the preliminaries? (column equation solution)
四月上旬，阳光小学举行了春季运动会．王刚代表五1班参加了100米跑步比赛，他的决赛成绩为11.8秒，比预赛成绩提高了0.3秒，并获得了冠军．王刚的预赛成绩是多少秒？(列方程解答)
<gadget id="calculator">11.8 + 0.3</gadget>
<output>12.1</output>

<result>12.1</result>