~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 / about 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

It seems as every g2a.com site wont allow me to enter. Source: 11 months ago

And if you don't know how to build by yourself, you can also pay those shops to do it for you. It might be around 10-15 rial without windows, and I advice you to buy windows key in g2a.com. Source: 12 months ago

It's either what you suggest or buying them in websites like g2a.com, recharge.com, etc. Source: 12 months ago

Don't forget to add Windows to the list, you can find it pretty cheap on g2a.com, it's a key reseller, only ~$25 bucks for a copy of windows vs $100+ retail. Source: 12 months ago

I am really poor like so poor that saving up 5.50 euroes was smthn, so I take my money and go to g2a.com only to accidentally click on the wrong card and buy a steam TL currency gift card. I'm so sad that now I won't be able to get those 5 euroes to my acc it will take at least a week for me to re-save up. Source: about 1 year ago