RULE. Having placed units under units, tens under-tens, &c. draw a line underneath, and begin with the units; after adding up every figure in that column, consider how mahy tens are contained in their sum ; set down the remainder under the units, an' carry so many as you have tens, to the next column of tens; proceed in the same manner through every column, or row, and set down the whole amount of thie last row. C. of Thousands. Thousands. Hundreds. Tens. 4 2 4 1 4 1 5 6 0 4 3 2 9 4 7 8 1 6 6 6 7 4 2 2 5 5 2 6 2 1 3 4 6 9 7 de 4 1 3 3 39 3 2 1 0 1 2 8 7 6 5 4 3 8 9 * (5.) (6.) 1 4 3 2 (7.) 37 1 4 5 5 1 7 14 6 0 8 4 5 3 8 5 7 6 1 7 8 4 5 2 101 To prove Addition, wegin at the top of the sum, ånd reekon the figures downwards in the same manner as they were added upwards, and if it be right, this suin tota! will be equal to the first: Or cut off the upper line of figures, and find the amount of the rest; then if the amount and upper line, when added, be equal to the total, the irork is supposed to be right. EXAMPLE. Excess of 9's. ... There is another method of proof, as follows : Reject or cast out the nines in each roit or suin of Sgures, and set down the 3 7 82 remainders, each directly even with the 5 6 6 figures in its row; find the sum of these 8 7 5 5 remainiers; then if the excess of nines in the sum found as before, is equal to the 18 S 0 3 excess of nines in the sum total, the work is supposed to be right. 15. Add 8035, 2194, 7421, 5063, 2190, and 1245 together Ans. 26754. 10. Find the sum of 3432, 783645, 318, 7530, and 9078045. Ans. 10475090. 17. Find the sum total of 604, 4680, 93, 64, and 54. Jus. Fifty-five hendred. 18. What is the sun total of 2-1674, 16742, 54678, 10-167, and 13439 ? Ans. One hundred thousand. 19. dd 1021, 3489, 2876S, 239, and 6438 together, dns. Forty thousand. 20. What is the sum total of the following numbers, viz. 2340, 1066, 3700, and 4005 ? Ans. 11111. 21. What is the sum total of the following numbers, viz.. Nine hundred and forty-seven, Answer, 61374177 29. Required the sum of the following numbers, viz... Five hundred and sixty-eight, Answer, 9999999 QUESTIOŃS. 1. What number of dollars are in six bags, containing Each 37542 dollars ? Ans. 225252. 2. If one quarter of a ship's cargo be worth eleven thousand and ninety-nine dollars, how many dollars is the wale caryo worth? Ans. 44396 dols. . Money was first made of gold and silver at Argos, eight hundred and ninety-four years before Christ; how Doing has money been in use at this date, 1814? Ans. 2708 years. - 4. The distance from Portland in the Province of skraine, to Boston, is 125 miles; from Boston to New ; Blusen, 162 miles; from thence to New-York, 88; from thience to Philadelphia, 95; from thence to Baltimore, 102; from thence to Charleston, South-Carolina, 716; and from thence to Savannah, 119 miles-What is the wihole distance from Portland to Savannah ? Ans. 1407 miles. 5. Jolin, Thomas, and Harry, after counting their pinze money, John had one thousand three hundred and seventy-five dollars ; Thomas had just three times as many as John ; and Harry had just as many as John and Thomas both--Pray how many dollars had Harry ? Ans. 5500 dollars. FEDERAL MONEY. NEXT in point of simplicity, and the nearest allied to wlole numbers, is the coin of the United States, or FEDERAL MONEY. This is the most simple and easy of all money-itinseases in a tenfold proportion, like whole numbers. 10 mills, (m.) make 1 cent, marked c. i dime, d. 10 dimes, 1 dollar, $. 10 dollars, 1 Eagle, E. Dollar is the money unit; all other denominations lie sng valued according to their place from the dollars place. A point or comma, called a separairi.r, muy be placed after the dollars to separate them from the inferior denominations, then the first figure at the right of this separatrix is dimes, the second figure cents, and the third mills. * ADDITION OF FEDERAL MONEY. RULE. 1. Place the numbers according to their value ; that is, dollars under dollars, dimes under dimes, cents under cents, &c. and proceed exactly as in whole numbers.; then place the separatrix in the sum total, directly under the separating points above. 2. When accounts are kept in dollars and cents, and no other dénominations are mentioned, which is the usual mode in common reckoning, then the two first figures at the right of the separatrix or point, may be called so many cents instead of dimes and cents; for the place of dimes is only the ten's place in cents; because ten cents make a dime; for example, 48, 75, forty-eight dollars, seven dimes five cents, may be read forty-eight dollar's and seventy-five cents. * It may bc observed that all the figures at the left hand of the separatrix are dollars; or you may call the first figure dollars, and the other eagles, &c. Thus any sum of this money may be read differently, either wholly in the lowest denomination, or partiy in the higher, and partly in the lowest; for example, 57 51, may be either read 3754 cents, or 875 dimes and 4 cents, or 37 dollars 5 dimes and 4 cents, or 8 eagles, 7 dollars 5 dimes and 4 cento. |