Xiaohong practiced brush calligraphy at home in February 2011 and wrote 3 sheets of paper every day. How many sheets of paper did she write in total this month?
小红2011年2月在家练毛笔字，每天写3张纸，这个月她一共写了多少张纸？
<gadget id="calculator">28 * 3</gadget>
<output>84</output>

<result>84</result>