Xiaoyi's family uses an average of 3 kWh of electricity per day. How many kWh did his family share in May?
小毅家平均每天用电3千瓦时，他家五月份共用电多少千瓦时？
<gadget id="calculator">3 * 31</gadget>
<output>93</output>

<result>93</result>