1.  Invitations were sent to 24 relatives for a family gettogether. Only 20 relatives came. How many relatives did not come? 
  

2.  Peter weighs 20 kg. His mother is 58 kg. How much more is his mother's weight (in kg)? 
  

3.  Mr. Nelson will be 45 next year. His son is 35 years younger than him. How many years old is his son at present? 
  

4.  A family party has 49 adults, 19 boys, and 7 girls. How many more adults are there at the party than children? 
  

5.  Ronnie is 13 years old. His aunt is 35. How many years older than him is his aunt? 
  
