How many yards longer was Kaeding's last field goal than his first two combined?
return Kaeding ;return field goals of #1 ;return the  first two of #2 ;return the  last of #2 ;return yards of #3 ;return yards of #4 ;return sum of #5 ;return the  difference of #6 and  #7
['select', 'project', 'project', 'aggregate', 'project', 'project', 'aggregate', 'arithmetic']