In the long jump competition, Xiaoying jumped 3.46 meters, Qiangqiang jumped 0.87 meters more than Xiaoying, and Liangliang jumped 0.13 meters less than Qiangqiang. How many meters did Liangliang jump?
跳远比赛中，小英跳了3.46米，强强比小英多跳了0.87米，亮亮比强强少跳了0.13米．亮亮跳了多少米？
<gadget id="calculator">0.87 - 0.13</gadget>
<output>0.74</output>

<gadget id="calculator">3.46 + 0.74</gadget>
<output>4.2</output>

<result>4.2</result>