The difference between the two numbers is 4.34. If the minuend increases by 12.98 and the subtrahend decreases by 6.66, what is the difference?
两个数的差为4.34，如果被减数增加12.98，减数减少6.66，则差是多少．
<gadget id="calculator">4.34 + 12.98 + 6.66</gadget>
<output>23.98</output>

<result>23.98</result>