### Contents

 Subtraction of Compound Numbers 87 THE METRIC SYSTEM 115 SPECIAL PROBLEMS 132 RATIO AND PROPORTION 157 Rule of Three 161 Cause and Effect 167 Simple Partnership 173
 STOCKS 261 INVOLUTION AND EVOLUTION 271 SERIES 284 MENSURATION 299 MISCELLANEOUS EXAMPLES 319 Copyright

### Popular passages

Page 79 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Page 78 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Page 315 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Page 76 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints — 1 quart (qt...
Page 38 - An Improper Fraction is one whose numerator is equal to or greater than its denominator ; as, f , -J.
Page 75 - LENGTH 12 inches (in.) =1 foot (ft.) 3 feet = 1 yard (yd.) 5\ yards, or 16| feet = 1 rod (rd.) 320 rods, or 5280 feet = 1 mile (mi.) SQUARE MEASURE 144 square inches (sq.
Page 76 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq.
Page 312 - A pyramid (Fig. 54) is a solid whose base is a polygon and whose sides are triangles uniting at a common point, called the vertex.
Page 27 - A number is divisible by 9 if the sum of its digits is divisible by 9.
Page 116 - MEASURE. 10 millimeters (mm.) = 1 centimeter (cm.) 10 centimeters = 1 decimeter (dm.) 10 decimeters = 1 meter (m.) 10 meters = 1 dekameter (Dm.) 10 dekameters = 1 hektometer (Hm.) 10 Hektometers = 1 kilometer (Km.) 10 kilometers = 1 myriameter (Mm.) 1 meter = 39.37 inches.