After reading chapter 7 and the seven prerequisite skills that are listed in the chapter in
order to successfully learn mathematics is a list I can concur with for the simple fact as I was
reading I immediately thought of a childhood friend that struggled with subtracting with “ghost
zeroes” and according to the list it’s because she struggled with visualizing pictures in her mind
and manipulating them (Sousa, 2015, p.161).
Due to the fact that she could not visualize the zero she could not manipulate the
subtraction problem and in return come up with the correct answer with each problem she was
given because she did not have all the necessary tools in order to move forward to be successful
in subtracting with zeroes. For example, if the subtraction problem had more than one zero in a
row she struggled with the problem. Teaching her to subtract with two zeroes in a row such as
900-58 was a task because she just could not understand that when you have two zeroes in a row
the first zero stays a ten and the second zero becomes a nine in every problem like 900-58. She