(a) Adding multiples of a fraction to produce a more convenient
fraction (perhaps connected with the use of palms and
cubits in decoration in a proportion based on the number 8).
(b) Finding the difference between a given fraction and a given
whole number.
D. _Ahe_[9] or "mass"-problems (of the form x + x/n = a, to find the
_ahe_ x).
E. _Tooun_-problems (_tooun_, "rising," seems to be the difference
between the shares of two sets of persons dividing an amount between
them on a lower and a higher scale).
II. _Geometry._--A. Measurement of volume (amounts of grain in
cylindrical and rectangular spaces of different dimensions and vice
versa).
B. Measurement of area (areas of square, circular, triangular, &c.,
fields).