Never had one of those. Our Smith Corona was thankfully new enough that it had the ability to "backspace" so I was lucky. We got our first computer in 1999/2000. Encyclopedia on a disc was horrible. Still spent 99% of my paper writing at the library looking through book index.
My program is 93 for A, 84 for B, and 75 for pass.
We get extra credit but we have to be at 74.6 or more for it to apply. If you have a 73 and there's 20 points extra credit it doesn't matter, you fail.