Thus, after counting 5, a wave of the hand to the left means 50.

As multiplication is rather unusual among savage tribes, this is noteworthy, and would seem to indicate on the part of the Indian a higher degree of intelligence than is ordinarily possessed by uncivilized races.
In the numeral scale as we possess it in English, we find it necessary to retain the name of the last unit of each kind used, in order to describe definitely any numeral employed.

Thus, fifteen, one hundred forty-two, six thousand seven hundred twenty-seven, give in full detail the numbers they are intended to describe.

In primitive scales this is not always considered necessary; thus, the Zamucos express their teens without using their word for 10 at all.

They say simply, 1 on the foot, 2 on the foot, etc.
Corresponding abbreviations are often met; so often, indeed, that no further mention of them is needed.