Teach yourself arithmetic.

Geahča maid

• Arithmetic for colleges/
  Dahkki: LARSEN, Harold D.
  Almmustuhtton: (1967)
• Logic and arithmetic : natural numbers /
  Dahkki: Bostock, David
  Almmustuhtton: (1974)
• The Higher arithmetic; an introduction to the theory of numbers
  Dahkki: DAVENPORT, H.
• Arithmetical functions: an introduction to elementary and analytic properties of arithmetic functions and to some of their almost-periodic properties
  Dahkki: Schwarz, Wolfgang
  Almmustuhtton: (1994)
• Arithmetic; a semiprogrammed text.
  Dahkki: WILLIAMS, Keith W.
  Almmustuhtton: (1970)