The highest daily temperatures in a certain place last week were: 26°C, 24°C, 23°C, 25°C, 20°C, 22°C, and 28°C. Please calculate the average maximum temperature for last week.
某地上周每天的最高气温分别是：26℃、24℃、23℃、25℃、20℃、22℃、28℃，请你算出上周平均最高气温．
<gadget id="calculator">26 + 24 + 23 + 25 + 20 + 22 + 28</gadget>
<output>168</output>

<gadget id="calculator">168 / 7</gadget>
<output>24</output>

<result>24</result>