In the activity of striving to be a small guard of environmental protection, Class 4 and Class 1 collected 30.6 kg of waste paper, which was 5.8 kg more than Class 4 and Class 2. How many kilograms of waste paper did the two classes collect in total?
在争当环保小卫士活动中，四1班收集了30.6千克废纸，比四2班多收集了5.8千克．两个班一共收集废纸多少千克？
<gadget id="calculator">30.6 - 5.8</gadget>
<output>24.8</output>

<gadget id="calculator">30.6 + 24.8</gadget>
<output>55.4</output>

<result>55.4</result>