Tagged With mental math

Calculators are awesome, but they're not always handy. More to the point, no one wants to be seen reaching for the calculator on their mobile phone when it's time to figure out a 15 per cent gratuity. Here are ten tips to help you crunch numbers in your head.

Predicting the future is near impossible -- but that doesn‘t stop us all from having a red hot go. Human beings have been predicting the future since the beginning of history and the results range from the hilarious to the downright uncanny.

One thing all future predictions have in common: they‘re rooted in our current understanding of how the world works. It‘s difficult to escape that mindset. We have no idea how technology will evolve, so our ideas are connected to the technology of today.

Calculators are awesome, but they're not always handy. More to the point, no one wants to be seen reaching for the calculator on their mobile phone when it's time to figure out a 15 per cent gratuity. Here are ten tips to help you crunch numbers in your head.