URL details: pballew.blogspot.com/2020/01/subtraction-borrowing-carrying-and.html
URL title:
Pat'sBlog: Subtraction, Borrowing, Carrying, and other Naughty Words, A Brief History
URL last crawled:
2022-07-05
URL speed:
0.333 MB/s,
downloaded in 0.400 seconds
We found no external links pointing to this url.