Maths on the Back of an Envelope
Thu, 06/18/2020 - 01:00
June 18, 2020
Rob Eastaway
I've forgotten more high school maths than I care to admit so this was a great little refresher.
Some nice pointers for improving your mental arithmetic, which is always handy when you have to quickly report on numbers at work. Worth pickip up for 99p if you see it on Kindle sale like I did.
Subheading
Clever ways to (roughly) calculate anything
is recommended
False
Book Cover