The difference between the two numbers is 2.7. If the minuend is increased by 0.5 and the subtrahend is decreased by 0.6, what is the difference between the two numbers now?
两个数的差是2.7，如果把被减数增加0.5，减数减少0.6，现在两数的差是多少．
<gadget id="calculator">2.7 + 0.5 + 0.4</gadget>
<output>3.6</output>

<result>3.6</result>