1.  A board game contains 50 total coins. There are 16 blue coins, and 11 green coins. How many coins are there of other colors? 
  

2.  The doctors at GetWell Hospital drank 58 cups of tea yesterday. They drank 7 cups in the morning and 21 in the afternoon. How many did they drink in the evening? 
  

3.  Peter borrowed 7 books from the school library. He returned 2 books yesterday and 2 books today. How many books does he still have? 
  

4.  Mrs. Lee had a lovely 35piece crockery set. Last evening, 3 cups and 2 saucers broke. How many pieces of crockery left? 
  

5.  Darren had half an hour to do his homework. He spent 7 minutes on English and 9 minutes on Science. How many minutes remain? 
  
