If all humans have a good sense of approximate number, how come only some of us developed exact numbers beyond one, two and three?

And add to that the approximate number of processes needed to get them from living into the thing in the packet.

After briefly observinging them, both groups could accurately estimate the approximate number of dots.

In 2003, the approximate number of its readers was 650,000 and the circulation was 15,000 copies.

The approximate number of users per day in 2012 was 8195 people, about 2,900,000 users per year.