Showing posts with label subtraction. Show all posts
Showing posts with label subtraction. Show all posts
Monday, July 23, 2007
Sunday, May 27, 2007
Subtraction Without Borrowing
I have written a procedure for dynamic subtraction, in which borrowing is replaced by dynamic addition and the subtraction that has to be done is much simpler: it is done within each place-value column, in any order; that is, subtracting the single-digit numbers in each column is completely independent of anything you do in any of the other columns. You can read more about it iin the following sites:
- Simplified Procedure
- Original (light) Procedure
- PDF download of this original version
- Detailed Explanation (download a PDF file)
- Subtraction Without Borrowing (my article)
Subscribe to:
Posts (Atom)