Mingming’s family bought 2.5kg of apples and 2.4kg of strawberries. I took 2 kilograms of strawberries to my grandma. How much fruit does Mingming have at home?
明明家买了2.5千克苹果，2.4千克草莓．给奶奶拿去了2千克草莓，这时明明家还有多少水果？
<gadget id="calculator">2.4 - 2</gadget>
<output>0.4</output>

<gadget id="calculator">2.5 + 0.4</gadget>
<output>2.9</output>

<result>2.9</result>