Have a long jump competition. Xiaoxiao jumped 3.15 meters, Tutu jumped 0.24 meters more than Xiaoxiao, Ding Ding jumped 0.15 meters less than Tutu, how many meters did Ding Ding jump?
进行跳远比赛．小小跳了3.15米，图图比小小多跳了0.24米，丁丁比图图少跳了0.15米，丁丁跳了多少米？
<gadget id="calculator">0.24 - 0.15</gadget>
<output>0.09</output>

<gadget id="calculator">3.15 + 0.09</gadget>
<output>3.24</output>

<result>3.24</result>