1. SIMPLE ADDITION. Q. What is Simple Addition? A. It is the putting together two or more numbers of the same denomination, so as to make them one total sum. 2. Q. How do you place numbers to be added? Place them one under another, with units under units, tens under tens, &c. and draw a line under the lowest number. 3. Q. Where do you begin the Addition ? A. At the right hand column. 14. Q. What is he answer called? A. Amount. 5. Q. How is the sum or amount of each column to be set down? A. If the sum be under ten, write it under the column; but if it be ten, or an exact number of tens, write a cypher; and if it be not an exact number of tens, write the excess above tens at the foot of the column, and for every ten the sum contains, carry one to the next column, and add it in the same manner as the former. 6. Q. What do you observe with regard to setting down the sum of the last column. A. The whole amount must be written down. 7. Q. Why do you carry for ten rather than any other number? A. Because ten in an inferior column is just equal to one in a superior. 8. Q. How is Addition proved? A. Reckon the figures from the top downwards, and if the work be right, this amount will be equal to the first; or, cut off the upper line of figures and find the amount of the rest; then if this amount and upper line when added, be equal to the sum total, the work is supposed to be right.. 1 PRACTIC L QUESTIONS. 1st. Add 1479043, 2153007, 2000, 307 and 41 together. Answer, 3634398. 2d. Add 4 million 8 hundred 74 thousand 8 hundred 35; 3 thousand 4 hundred 85; 63 thousand 5 hundred; and 8 hundred 74 together. Ans. 4942694. 3d. Add eight million, four hundred thirty-three thousand, four hundred and eighty-seven; seven hundred eighty-three thousand, four hundred and thirtyeight; five thousand six hundred eighty-seven; and eight hundred sixty-three together. Ans. 9223475. 4th. An Ox was killed which weigh'd as follows, (viz.) Quarters; one hundred seventy-five pounds each; hide seventy-five lb.; tallow one hundred nine lb.: required the total weight. Ans. 884. 5th. Add fifteen thousand, five hundred and seven; two thousand, four hundred and nineteen; seven hundred and twenty thousand, three hundred and fifty-six ; and three million, thirty thousand thirteen together. Ans. 3768295. 6th. A man bought a farm for 3750 Dollars; he built a house that cost 1575 Dollars, a Barn 705Dollars, other out-buildings 500 Dolls.: and put on it a stock of Cattle worth 340 Dolls.: what was the whole worth? Ans. 6870 Dolls. SIMPLE SUBTRACTION. 1. Q. What is Simple Subtraction? A. It is taking a less number from a greater of the same denomination, so as to shew the difference or remainder. 2. Q. How many numbers must be given to perform this operation? A. Two. 3. Q. What are they called? A. The greater number is called the Minuend, and the less the Subtrahend. 4 Q. How must the given numbers be placed? |