The average depth of the Atlantic Ocean is about 3.62 kilometers, the average depth of the Indian Ocean is 0.27 kilometers deeper than the Atlantic Ocean, and the Indian Ocean is 2.59 kilometers deeper than the Arctic Ocean. What is the average depth of the Arctic Ocean in kilometers?
大西洋平均深度约为3.62千米，印度洋平均深度比大西洋深0.27千米，印度洋比北冰洋深2.59千米．北冰洋的平均深度约是多少千米？
<gadget id="calculator">0.27 - 2.59</gadget>
<output>-2.32</output>

<gadget id="calculator">3.62 + (-2.32)</gadget>
<output>1.3</output>

<result>1.3</result>