Based on the Information Presented in the Chapter, How Many

Multiple Choice

Based on the information presented in the Chapter, how many systems are involved in one's numerical understanding?

A) 0
B) One: an innate system of number sense
C) One: a formal system of mathematics conveyed by rough education
D) Two: One innate system of number sense and one formal system of mathematics conveyed by rough education
E) Three: One innate system of number sense, one formal system of mathematics conveyed by rough education and one sense of inversion, otherwise known are the reversibility of mathematical operations