Arithmetic made easy, in the first four fundamental rules, with an appendix of reduction and the single rule of three. Also a collection of all the useful tables. ... By J. Bettesworth, ...
Bettesworth, John.
London : printed for the anthor [sic], by W. Mackintosh; and sold by W. Davies; A. Hogg; J. Macgowan; and - Turpin,
[1780?]
Pp.29 and 36 unpaginated.
ESTC