The table shows quiz marks out of 25 in each subject.   English Geography Mathematics Science Andy 54 93 76 37 Bill 59 52 89 86 Clive 54 55 77 71 1. What is the difference betweenClive's marks in English and Science?   2. How many more marks does Andy need for a perfect score in Mathematics?   3. In Geography, how many more marks did Andy get than Bill?   4. Find the difference between Andy's Science marks and Bob's English marks.   5. The Mathematics teacher gave Clive 65 extra marks by mistake. What are his real marks?