A book has 3 chapters. The first chapter is 35 pages long the second chapter is 18 pages long and the third chapter is 3 pages long. How many more pages does the second chapter have than the third chapter?
The first chapter is 35 pages long. 
The second chapter is 18 pages long. 
The third chapter is 3 pages long. 

To find out how many more pages the second chapter has than the third chapter, we need to subtract the number of pages in the third chapter from the number of pages in the second chapter. 

18 - 3 = 15 

The second chapter has 15 more pages than the third chapter.