### Contents

 SEVENTH YEAR i DENOMINATE NUMBERS 1 Denominate numbers 2 Square measure 6 Cubic measure 14 Measurement of wood 19 Measurement of lumber 20 Liquid measure 25 Dry measure 27
 The cylinder 65 PROPORTION 69 PRO FES 77 77 The Pythagorean theorem 129 Isosceles and equilateral triangles 132 Prisms and pyramids compared 133 Cylinders and cones compared 137 Measurement of the sphere 143

 The wheel and axle 28 The statement of a proportion 29 Weight measures 30 Fractional equivalents of per cents 31 A relation expressed as per cent 32 Profit and loss 33 Commission 34 Measurement of time 35 Angle and arc measure 36 Billing goods to the trade 37 Simple interest 38 Measurement of paper 39 Security 40 Units in counting 41 POWERS AND ROOTS 42 Powers and roots 42 The process of extracting square root 43 Latitude and longitude 45 Standard time 48 Foreign money 50 MENSURATION 54 The ratio of circumference to diameter 55 The area of a circle 58 Rectangular prisms and their volumes 61 The surfaces of rectangular prisms 63
 APPLICATIONS OF PERCENTAGE 49 Property insurance 154 Taxes 156 National revenues 159 Trade discount 161 Successive discounts trade discount 54 A single discount equivalent to two discounts 165 Discounts on goods bought at a discount 166 Simple interest 169 Borrowing at a bank 174 Discounting notes 175 123 178 Partial payments on a note 181 Compound interest by tables 182 Stock investments 185 Bonds 190 Indirect problems of percentage 192 GENERAL REVIEW 200 Miscellaneous problems 211 132 224 143 225 156 226 159 227 169 228 Test Questions 230 Copyright

### Popular passages

Page 6 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq. yd.) 30^ square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Page 15 - CUBIC MEASURE 1728 cubic inches (cu. in.) = 1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Page 143 - A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre.
Page 149 - The specific gravity of a substance is the ratio of the weight of a given volume...
Page 239 - Divide the greater number by the less, and that divisor by the remainder, and so on ; always dividing the last divisor by the last remainder, till nothing remains ; the last divisor is the greatest common divisor required.