Maddie is $$2$$ years older than Lola, and Lola is $$6$$ years younger than Ellie.  How much older is Ellie than Maddie? 
Overseas Competition->Knowledge Point->Word Problem Modules->Age Problems->Basic Relationships in Age Problems
Ellie is $$6$$ years older than Lola, and Maddie is $$2$$ years older than Lola. Therefore Ellie is $$4$$ years older than Maddie. 