1. Invitations were sent to 91 relatives for a family get-together. Only 81 relatives came. How many relatives did not come?   2.  There are five members in Warren's family. Their total weight is 272 kg. His own weight is 46 kg. How many kilograms do the other four members weigh?   3. Mr. Buffet will be 66 next year. His son is 34 years younger than him. How many years old is his son at present?   4. A family party has 101 adults, 24 boys, and 13 girls. How many more adults are there at the party than children?   5. For Christmas, Mr. Anderson gave $122 to his two sons. He gave $87 to the elder son. How many dollars did he give the younger son?