1. A board game contains 97 total coins. There are 18 blue coins, and 16 green coins. How many coins are there of other colors?   2. The doctors at Get-Well Hospital drank 131 cups of tea yesterday. They drank 46 cups in the morning and 26 in the afternoon. How many did they drink in the evening?   3. John borrowed 193 books from the school library. He returned 20 books yesterday and 27 books today. How many books does he still have?   4. Mrs. Smith had a lovely 117-piece crockery set. Last evening, 7 cups and 14 saucers broke. How many pieces of crockery left?   5. Warren had half an hour to do his homework. He spent 43 minutes on English and 39 minutes on Science. How many minutes remain?