If the minuend increases by 4.5 and the subtrahend decreases by 0.7, how much does the resulting difference increase
如果被减数增加4.5，减数减少0.7，那么所得的差增加多少
<gadget id="calculator">4.5 + 0.7</gadget>
<output>5.2</output>

<result>5.2</result>