There is a cuboid glass container with a length of 4 decimeters and a width of 2.5 decimeters. A cube of iron with a side length of 1 decimeter is put into the container. How many centimeters has the water risen?
有一个长方体玻璃容器，长4分米，宽2.5分米，把一块棱长1分米的正方体铁块放入容器内．水面上升了多少厘米．
<gadget id="calculator">4 * 2.5</gadget>
<output>10</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 * 1 * (1/10) * 10</gadget>
<output>1</output>

<result>1</result>