1. Stacy has 11 teddy bears. She gives away 2 of them to her best friend. How many teddy bears does she now have?   2. A fish tank contains 57 fish of which 3 are stationary. How many fish in the tank are moving?   3. There are 29 birds in a sanctuary of which 21 are green. How many birds are there of other colors?   4. A circus has 9 elephants. There are 3 elephants with tusks. How many elephants do not have tusks?   5. A magician starts with 5 doves and makes 3 doves vanish. How many doves remain?