Tag: maths

This is a really quick method I've found for estimating what 2^n is. As we can see on the left there is some kind of pattern as to when we move up an order of magnitude If your n ends in a 0 a 4 or a 7 then you will be on the first… Continue reading Powers of 2 →

This post goes into some rules you can use to calculate compound interest. The rule of 72: what is it and why does it work "In order to find the time it takes to double your money divide 72 by the rate of return" For example if your rate of return is 8% it should… Continue reading Compounding →