Many people use one finger to count a number when asked, 'Use both fingers to count numbers.' In this How to count, to be counted using both hands is up to 0 to 10, more than to count the number of, ...

It is said that humans can count up to four at a glance, but for larger numbers they need to count and guess. A research team from Eberhard Karl-University Tübingen and Bonn University Hospital has ...