### Contents

 THE ARABIC SYSTEM 11 NOTATION AND NUMERATION 12 ADDITION 21 SUBTRACTION 38 MULTIPLICATION 52 DIVISION 67 FACTORS 91 FRACTIONS 99
 LONGITUDE AND TIME 201 GENERAL REVIEW EXERCISES 220 INTEREST 262 Annual Interest 269 Partial Payments 276 True Discount 282 INTEREST Continued PAGE 289 PARTNERSHIP 308

 Reduction 102 Addition 110 PRINCIPLE 111 Multiplication 117 DECIMAL FRACTIONS 144 the one at the right expresses units the next tens and the next 145 Tell what each figure in the following expresses 153 Short Processes 161 DENOMINATE NUMBERS 170
 INVOLUTION 324 GENERAL REVIEW EXERCISES 343 AVERAGE OF PAYMENTS 368 PROBLEMS IN COMPOUND INTEREST 381 DIVISORS AND MULTIPLES Continued PAGE 392 PROOFS 400 METRIC SYSTEM OF WEIGHTS AND MEASURES 411 Copyright

### Popular passages

Page 419 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints — 1 quart (qt...
Page 417 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq.
Page 369 - Multiply each payment by its term of credit, and divide the sum of the products by the sum of the payments ; the quotient will be the average term of credit.
Page 370 - Weighted average is used in this report to indicate discharge-weighted average. It is computed by multiplying the discharge for a sampling period by the concentrations of individual constituents for the corresponding period and dividing the sum of the products by the sum of the discharges.
Page 421 - TABLE. 24 grains (gr.) = 1 pennyweight, (pwt.) 20 pennyweights = 1 ounce, (oz.) 12 ounces =1 pound. (Ib.) Apothecaries' Weight is used in compounding medicines.
Page 212 - 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 331 - ... subtract the product from the dividend, and to the remainder annex the next period for the next dividend.
Page 105 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Page 417 - CUBIC MEASURE. 1728 cubic inches (cu. in. ) = 1 cubic foot (cu. ft.).
Page 98 - Cancel the common factors from both the dividend and divisor. II. Then divide the product of the remaining factors of the dividend by the product of the remaining factors of the divisor, and the result will be the quotient.