The iron and steel plant plans to produce 2.358 million tons of steel for the whole year. As a result, it produced 1.157 million tons in the first half of the year and 1.299 million tons in the second half of the year. How many tons will it exceed the plan for the whole year?
钢铁厂计划全年生产钢235.8万吨，结果上半年生产了115.7万吨，下半年生产了129.9万吨．全年超过计划多少万吨？
<gadget id="calculator">115.7 + 129.9</gadget>
<output>245.6</output>

<gadget id="calculator">245.6 - 235.8</gadget>
<output>9.8</output>

<result>9.8</result>