The school cafeteria bought 8 boxes of apples, each weighing 9 kilograms, and 28 kilograms of pears. How many kilograms of fruit did you buy in total?
学校食堂买8箱苹果，每箱重9千克，又买来了28千克鸭梨，一共买了多少千克的水果？
<gadget id="calculator">9 * 8</gadget>
<output>72</output>

<gadget id="calculator">72 + 28</gadget>
<output>100</output>

<result>100</result>