1.  Invitations were sent to 23 relatives for a family gettogether. Only 19 relatives came. How many relatives did not come? 
  

2.  Darren weighs 24 kg. His mother is 64 kg. How much more is his mother's weight (in kg)? 
  

3.  Mr. Douglas will be 35 next year. His son is 27 years younger than him. How many years old is his son at present? 
  

4.  A family party has 52 adults, 19 boys, and 15 girls. How many more adults are there at the party than children? 
  

5.  Gary is 11 years old. His aunt is 36. How many years older than him is his aunt? 
  
