Intuitive Calculations

The Most Concise Methods Ever Published, Designed For The Use Of All Classes; To Which Is Added An Appendix On Decimal Computation, Coins, And Currency, With Ne... » 

The Most Concise Methods Ever Published, Designed For The Use Of All Classes; To Which Is Added An Appendix On Decimal Computation, Coins, And Currency, With New Decimal Tables, Showing The Value Of The Integral Quantity In Money, «