1. Sarah has 13 teddy bears. She gives away 9 of them to her best friend. How many teddy bears does she now have?   2. A fish tank contains 89 fish of which 2 are stationary. How many fish in the tank are moving?   3. There are 39 birds in a sanctuary of which 34 are black. How many birds are there of other colors?   4. A circus has 12 elephants. There are 5 elephants with tusks. How many elephants do not have tusks?   5. A magician starts with 13 doves and makes 5 doves vanish. How many doves remain?