A tractor plows 3.56 hectares in the morning, 0.56 hectares less in the morning than in the afternoon. How many hectares of arable land are there in total?
一台拖拉机上午耕地3.56公顷，上午比下午少耕地0.56公顷．这天一共耕地多少公顷？
<gadget id="calculator">3.56 + 0.56 + 3.56</gadget>
<output>7.68</output>

<result>7.68</result>