Xiaojun cuts 18 kilograms of grass, and Xiaohong cuts 6 kilograms less than Xiaojun. How many kilograms did the two cut together?
小军割草18千克，小红比小军少割6千克．两人一共割多少千克？
<gadget id="calculator">18 - 6</gadget>
<output>12</output>

<gadget id="calculator">12 + 18</gadget>
<output>30</output>

<result>30</result>