Column calculation: What is the difference between 1.8 and 0.4, plus the quotient of 2.5 divided by 5?
列式计算：1.8与0.4的差，加上2.5除5的商，和是多少？
<gadget id="calculator">1.8 - 0.4</gadget>
<output>1.4</output>

<gadget id="calculator">5 / 2.5</gadget>
<output>2</output>

<gadget id="calculator">1.4 + 2</gadget>
<output>3.4</output>

<result>3.4</result>