Summaries of Chapter 10-12


Chapter 10-

Chapter ten begins with Robert in a private showing with the number devil. In this chapter the number devil gives Robert a computer. Then he tells Robert to divide the Bonacci numbers by their neighbors. When he did that he got decimals. the umber devil told him that ordinary numbers do the same thing. 

The number devil teaches Robert about a unit of measurement called quang. He uses a pentagon with a star inside it to teach Robert about quang. The number devil also teaches Robert that if you count the dots, lines, and spaces in a star you will get the answer one by adding the first two numbers and subtracting the sum of the first two by the last number. The Chapter ends with the number devil disappearing.  


Chapter 11- 

The chapter begins with Robert being chases by a bunch of his math teacher. The number devil rescues him and takes him to the top floor of a building. When they get there Robert tells him that he wants to know why numbers do what they do. He wants proof. In this chapter the number devil teaches him zero exponents and how to proof things. The chapter ends with the number devil going to bed.

Chapter 12-

The chapter begins with the Robert asleep but not dreaming. Robert is woken up by the number devil inviting him to a fancy event in Number Heaven. The way they get there is by the number devil flying them there. Once they get there they start walking around looking. In this chapter Robert finds out that the number devils real names is Teplotaxl. While they were at the fancy event the number devil taught Robert about pi. After the event was over Robert was made the bearer of the Order of Pythagoras. Robert had to say good-bye to the number devil. At school the next day Robert used his number devil powers to solve a problem his math teacher gave him. 




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