A cow eats 3.78 kg of feed in the morning, and eats 0.96 kg less in the afternoon than in the morning. How many kg of feed does this cow eat in a day?
一头牛上午吃了3.78千克饲料，下午比上午少吃0.96千克，这头牛全天一共吃多少千克饲料？
<gadget id="calculator">3.78 - 0.96</gadget>
<output>2.82</output>

<gadget id="calculator">3.78 + 2.82</gadget>
<output>6.6</output>

<result>6.6</result>