An edition of The American tutor's assistant improved, or, A compendious system of decimal, practical arithmetic (1799)

The American tutor's assistant improved: or, A compendious system of decimal, practical arithmetic

comprising the usual methods of calculation, with the addition of federal money, and other decimals, dispersed through the several rules of that useful science. : Adapted for the easy and regular instruction of youth in the United States

By Zachariah Jess