~20 years ago, HN user sophiebits made a nice arithmetic trainer: https://arithmetic.zetamac.com/ (discussed here: https://news.ycombinator.com/item?id=1728309 The features I plan to add to make it 'complete':. - Source: Hacker News / 2 months ago

You should also find an online arithmetic drill site and set it up to give you 1-digit addition, subtraction, and multiplication problems. You don't have to memorize all the 1-digit number facts (I didn't until I was in college) but boy howdy will it speed you up. You should drill until you can do about 30 in two minutes. I recommend arithmetic.zetamac.com ; you should select addition and multiplication only,... Source: 8 months ago

I've spent time improving my written arithmetic with games like https://arithmetic.zetamac.com/. Speed drills. I still struggle with arithmetic that is prompted without being written down. I.e. If someone said "43+12" I would find this hard whereas doing this on a written online speed drill is fine. Does anyone have any resources that would say outloud basic arithmetic questions and I can then input the answers? Source: 11 months ago

I quite like this for helping cognition but weirdly I can still be good at it but have awful memory at the same time. It's quite addictive just press start. Https://arithmetic.zetamac.com. Source: 12 months ago

Arithmetic game (https://arithmetic.zetamac.com/) is good for testing yourself, and you can change the size of the numbers you're working with if you find you have difficulty with a particular combo. Source: about 1 year ago

Https://hn.algolia.com/ is quite good for finding things on HN. - Source: Hacker News / 1 day ago

Submitters love this page https://hn.algolia.com/?dateRange=all&page=0&prefix=false&query=sonoluminescemce&sort=byDate&type=story. - Source: Hacker News / 3 days ago

Actually we moderate less, not more, when YC or a YC startup is the story. This is the #1 rule of HN moderation and has been since pg first explained it to me on the morning he started showing me how to moderate HN. If anyone wants to read more about, there are many years' worth of past explanations here:... - Source: Hacker News / 2 days ago

Pandoc is the standard for markdown conversion. Check out the comments in this recent thread (or any other thread where someone is showing off their hand-rolled markdown converter): https://news.ycombinator.com/item?id=40695628. - Source: Hacker News / 3 days ago

Https://hn.algolia.com/?dateRange=all&page=0&prefix=false&query=eid%20mubarak&sort=byPopularity&type=story As much as I'd love to wish everyone Merry Christmas, I just don't think this is the right place for that.. Might as well allow anything and everything then? - Source: Hacker News / 2 days ago