Li Hua's average score in Chinese, English and science was 84 in the mid-term exam. After the math results were announced, the average score increased by 3 points. What is Li Hua's math score?
李华期中考试，语文、英语和科学的平均分是84分，数学成绩公布后，平均成绩提高了3分，李华数学成绩是多少分？
<gadget id="calculator">84 + 3</gadget>
<output>87</output>

<gadget id="calculator">87 * 4</gadget>
<output>348</output>

<gadget id="calculator">84 * 3</gadget>
<output>252</output>

<gadget id="calculator">348 - 252</gadget>
<output>96</output>

<result>96</result>