1.  Barbara has 20 teddy bears. She gives away 9 of them to her best friend. How many teddy bears does she now have?   2. A pond contains 580 fish of which 81 are stationary. How many fish in the tank are moving?   3. There are 146 birds in a sanctuary of which 17 are yellow. How many birds are there of other colors?   4. A jungle has 564 deer. There are 348 spotted deer. How many deer do not have spots?   5. A magician starts with 21 rabbits and makes 6 rabbits vanish. How many rabbits remain?