The students compete in the long jump. Dongdong jumped 3.16 meters, Liangliang jumped 0.23 meters more than Dongdong, Qiangqiang jumped 0.18 meters less than Liangliang, how many meters did Qiangqiang jump?
同学们进行跳远比赛．冬冬跳了3.16米，亮亮比冬冬多跳0.23米，强强比亮亮少跳0.18米，强强跳了多少米？
<gadget id="calculator">0.23 - 0.18</gadget>
<output>0.05</output>

<gadget id="calculator">3.16 + 0.05</gadget>
<output>3.21</output>

<result>3.21</result>