April 19, 1775, anla general peace took place January 20th, 1783; how long did the war continue? Ans. 7 yrs. 9 mo. 1 d. COMPOUND MULTIPLICATION. COMPOUND Multiplication is when the Multiplicand consists of several denominations, &c. 1. To Multiply Federal Money. RULE.-Multiply as in whole numbers, and place the separatrix a many figures from the right hand in the product, as it is in the mul stiplicand, or given sum. 7. Multiply 9 mills by 50 Ans. 0, 45 8. There were forty-one men concerned in the payment. uf a sum of money, and each paid 3 dollars and 9 mills; how much was paid in all? Ans. $123 36 cts. 9 mills. 9. The number of inhabitants in the United States is five millions; now suppose each should pay the trifling suni of 5 cents a year, for the term of 12 years, towards a continental tax; how many dollars would be raised thereby? Ans. Three millions Dollars. 2. To Multiply the denominations of Sterling Money Weights, Measures, &c. RULE. Write down the Multiplicand, and place the quantity underneath the least denomination, for the Multiplier, and in multiply ing by it, observe the same rules for carrying from one denomination to another, as in compound Addition.* INTRODUCTORY EXAMPLES. £. s. d. 7. Multiply 1 11 6 2 by 5. How much is 3 times Practical Questions. What cost nine yards of cloth at 5s. 6d. per yard? £0 5 6 price of one yard. Multiply by 9 yards. When accounts are kept in pounds, shillings, and pence, this kind of multiplication is a concise and elegant method of finding the value of goods, at much per yard, lb. &c. the general rule being to multiply the given pri by the quantity, 11 tuns of hay, at 2 1 10 per tun. 12 bushels of apples, at 0 I 9 23 0 11 5 18 per bush. 12 bushels of wheat, per bush. 2. When the multiplier, that is, the quantity, is a coi posite number, and greater than 12, take any two su numbers as when multiplied together, will exactly produ the given quantity, and multiply first by one of tho figures, and that product by the other; and the last pro ly will be the answer. EXAMPLES. What cost 28 yards of cloth, at 6s. 10. per yard? £. s. d. 3 When no two numbers multiplied together will exactly make the multiplier, you must multiply by any two whose product will come the ncarest; then multiply the upper line by what remained; which, added to the last product, gives the answer EXAMPLES. What will 47 yds. of cloth come to at 17s. 9d. per yd. ? £. S. d. 4. To find the value of a hundred weight, by having the price of one pound. If the price be farthings, multiply 2s. 4d. by the farthings. in the price of one lb.-Or, if the price be pence, multiply . 4d. by the pence in the price of one lb. and in either case the product will be the answer. EXAMPLES. 1. What will I cwt. of rice come to, at 21d. per lb.? S. d. 112 farthings=2 4 price of 1 cwt. at d. per lb. 9 farthings in the price of 1 lb. Ans. £11 O price of 1 cwt. at 21d. per lb. |