The rules of the math competition: 15 points for each correct question, 3 points for each incorrect question, there are 12 questions in total, Xiaohong scored 144 points, how many questions did she get right?
数学竞赛规定：每做对一道题得15分，做错一道题扣3分，共有12道题，小红得了144分，她做对了几道题？
<gadget id="calculator">15 * 12</gadget>
<output>180</output>

<gadget id="calculator">180 - 144</gadget>
<output>36</output>

<gadget id="calculator">15 + 3</gadget>
<output>18</output>

<gadget id="calculator">36 / 18</gadget>
<output>2</output>

<gadget id="calculator">12 - 2</gadget>
<output>10</output>

<result>10</result>