The school cafeteria bought 38.25 kilograms of tomatoes and 21.08 kilograms of cucumbers. The celery bought was 4.35 kilograms less than the sum of tomatoes and cucumbers. How many kilograms of celery were bought?
学校食堂买来西红柿38.25千克，黄瓜21.08千克，买来的芹菜比西红柿和黄瓜的总和少4.35千克，买来芹菜多少千克？
<gadget id="calculator">21.08 - 4.35</gadget>
<output>16.73</output>

<gadget id="calculator">38.25 + 16.73</gadget>
<output>54.98</output>

<result>54.98</result>