In the long jump competition, Xiaodong jumped 3.21 meters, Xiaoliang jumped 0.18 meters more than Xiaodong, Xiaoqiang jumped 0.24 meters less than Xiaoliang, how many meters did Xiaoqiang jump?
跳远比赛中，小冬跳出了3.21米，小亮比小冬多跳0.18米，小强比小亮少跳0.24米，小强跳了多少米？
<gadget id="calculator">0.18 - 0.24</gadget>
<output>-0.06</output>

<gadget id="calculator">3.21 + (-0.06)</gadget>
<output>3.15</output>

<result>3.15</result>