Most of us have little trouble working out how many millilitres are in 2.4 litres of water (it’s 2,400). But the same can’t be said when we’re asked how many minutes are in 2.4 hours (it’s 144).

Most of us have little trouble working out how many milliliters are in 2.4 liters of water (it's 2,400). But the same can't be said when we're asked how many minutes are in 2.4 hours (it's 144).

Lisa Davidson of La Canada Flintridge was surprised to see all the numbers -- instead of letter grades -- and other data on her son’s elementary school report card. Her shock quickly turned to ...

I find the history of numbers so much more fascinating than the application of numbers. Who cares about learning calculus, when you can geek out on the brief history of numerical systems? Alessandra ...

Silke Goebel has received funding from the Economic and Social Research Council (UK), the British Academy and the Experimental Psychology Society. Counting feels utterly effortless to adults, who are ...

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