Primary exercises in arithmetic : no. 5 : fourth year, first half : exercises on the simple rules : multiplication by factors and two figures : division by factors without remainders : sight exercises on the tables of time, length, etc. : notation and numeration up to six places : abundance of sight work
The united and much admired system of arithmetic and mental calculations of Doctor Willcolkes and Messrs. T. and T.W. Fryer : being the result of many years' study
