top | item 18100197 Show HN: Quento.com 2 points| mrtnkl | 7 years ago |quento.com | reply 1 comment order hn newest [+] [-] riser9|7 years ago|reply I've been looking for something like this, because I rarely use mental math anymore. I'll use this on the tube. :)
[+] [-] riser9|7 years ago|reply I've been looking for something like this, because I rarely use mental math anymore. I'll use this on the tube. :)
[+] [-] riser9|7 years ago|reply