Class 6: Mathematics: NotesUncategorized / By Indo English School CHAPTER 1: NUMBER SYSTEM (Ms. Sudha Oram) CHAPTER 2: WHOLE NUMBERS (Ms. Sudha Oram) CHAPTER 3: INTEGERS (Ms. Sudha Oram) CHAPTER 14: GOEMETRICAL CONCEPTS (Ms. Sudha Oram) CHAPTER 15: ANGLES (Ms. Sudha Oram)