# Introduction to the National Arithmetic ...

R.S. Davis, 1851
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### Contents

 NOTATION AND NUMERATION 7 Exercises in French Notation and 13 SUBTRACTIONMental Exercises 26 MULTIPLICATIONMental Exercises 34 DIVISIONMental Exercises 46 46 63 ADDITION OF COMPOUND NUMBERS 110 MISCELLANEOUS EXERCISES IN ADDI 119
 129 194 SIMPLE INTEREST 198 SECTION XXIX 211 ASSESSMENT OF TAXES 229 PARTNERSHIP OR COMPANY BUSINESS 248 EVOLUTION 263 ARITHMETICAL PROGRESSION 279 GEOMETRICAL PROGRESSION 286

 MISCELLANEOUS EXAMPLES IN MULTI 129 A Common Divisor 135 110 162 119 178 COMPOUND INTEREST 182 122 188
 PERMUTATION 297 MENSURATION OF SOLIDS 304 MENSURATION OF LUMBER AND TIM 310 134 313 WEIGHTS MEASURES AND MONEY 318

### Popular passages

Page 209 - Compute the interest on the principal sum, from the time when the interest commenced, to the first time when a payment was made, which exceeds, either alone, or in conjunction with the preceding payments, if any, the interest at that time due ; add that interest to the principal, and from...
Page 8 - ... one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty thirty forty fifty sixty seventy eighty ninety one hundred two hundred three hundred four hundred five hundred...
Page 277 - SPHERE is a solid bounded by one continued convex surface, every part of which is equally distant from a point within, called the centre.
Page 280 - Divide the difference of the extremes by the number of terms, less 1, and the quotient will be the common difference.
Page 211 - Compute the interest to the time of the first payment; if that be one year or more from the time the interest commenced, add it to the principal, and deduct the payment from the sum total. If there be...
Page 279 - ... series. The numbers which form the series are called the terms of the series. The first and last terms are the extremes, and the other terms are called the means.
Page 138 - Mnltiple of two or more numbers is a number that can be divided by each of them without a remainder; thus 12 is a common multiple of 3 and 4.
Page 158 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Page 211 - ... compute the interest on the principal sum due on the obligation for one year, add it to the principal, and compute the interest on the sum paid, from the time it was paid, up to the end of the year : add it to the sum paid, and deduct that sum from the principal and interest added as above...
Page 306 - To find the solidity, or volume, of a cylinder. RULE. — Multiply the area of the base by the altitude, and the product will be the solidity or volume.