Xiaolan's height is 1.37 meters. Xiaolan stands on the stool 0.12 meters higher than the 1.75 meters bookcase. What is the height of the stool?
小兰的身高是1.37米，小兰站在凳子上比1.75米的书柜高0.12米，凳子的高是多少？
<gadget id="calculator">0.12 - 1.37</gadget>
<output>-1.25</output>

<gadget id="calculator">1.75 + (-1.25)</gadget>
<output>0.5</output>

<result>0.5</result>