enable him to measure and relate the facts of geography, history, and science. It should bear directly upon the vital interests of the home and family. Care has been taken in the selection of problems to meet these requirements, so far as possible, with due regard to the mathematical content of the exercises, which must always be the first consideration. INTERMEDIATE ARITHMETIC PART ONE 1. That which tells how many is number; e.g. 11, 14 (books), 2. One is a unit; e.g. 1 dollar, 1 house, one. 4. Expressing numbers by means of figures is Arabic notation; 1, 2, 3, 4, 5, 6, 7, 8, and 9 are called significant figures, because The figure 0, called zero, or naught, has no value, but is used to give the significant figures their proper places in a number. 3 4 6 5, 2 0 9, 3 1 5, 0 8 7 This number is read, four hundred sixty-five billion, two hundred nine million, three hundred fifteen thousand, eighty-seven. A comma (,), sometimes called a separatrix, is used between periods to aid in reading numbers. 7. Oral 1. Name the periods in this number. Name the places. 2. How many periods are there? How many places? 3. How many places are there in each period? 4. How does the name of each period compare with the name of its right-hand place? 8. Written Express in figures: 1. Two hundred thousand, sixteen. 2. Eleven thousand, two. |