1. A board game contains 36 total coins. There are 18 yellow coins, and 4 white coins. How many coins are there of other colors?   2. The doctors at Get-Well Hospital drank 61 cups of tea yesterday. They drank 31 cups in the morning and 23 in the afternoon. How many did they drink in the evening?   3. Paul borrowed 12 books from the school library. He returned 5 books yesterday and 4 books today. How many books does he still have?   4. Mrs. Brown had a lovely 46-piece crockery set. Last evening, 3 cups and 2 saucers broke. How many pieces of crockery left?   5. Jack had half an hour to do his homework. He spent 5 minutes on English and 12 minutes on Science. How many minutes remain?