24. A man sold three house lots; for one he received 975 dollars, for another 763 dollars, and for the third 586 dollars. What did the whole amount to?

25. A gentleman purchased a store for 4500 dollars, and paid 75 dollars for repairs, and 150 dollars for having it enlarged. For how much must he sell it in order to gain 175 dollars?

26. A gentleman paid 75 dollars for one piece of cloth, 67 dollars for another, 54 dollars for another, and 48 dollars for another. How much did he pay for all?

27. A certain orchard contains 56 apple-trees, 19 peachtrees, 23 plum-trees, and 15 cherry-trees. How many trees are there in the orchard?

28. The distance from New York to Albany is 150 miles, from Albany to Utica 93 miles, from Utica to Rochester 158 miles, and from Rochester to Buffalo 75 miles. How far is it from New York to Buffalo ?

29. A man being asked his age, said he was 17 years old when he left the academy, he spent 4 years in college, 3 years in a law school, practiced law 15 years, was a member of congress 18 years, and it was 16 years since he retired from business. How old was he?

30. A shopkeeper having a note due, paid 184 dollars at one time, at another 263 dollars, at another 379 dollars, at another 467 dollars, and there were 350 dollars still unpaid. What was the amount of his note?

31. A gentleman owns a house and lot worth 10800 dollars, a store worth 5450 dollars, a house-lot worth 3700 dollars, and has 15000 dollars in personal property. What is the whole amount of his property?

32. A man left his estate to his wife, his three sons, and two daughters; to his wife he gave 10350 dollars, to his sons 5450 dollars apiece, and his daughters 3500 Mollars apiece. How large was his estate?

33. A merchant, on looking over his accounts, found he owed one man 750 dollars, another 648, another 597, another 436, another 379, and another 287 dollars. What was the amount of his debts?

34. A man bought a span of horses for 275 dollars, a

carriage for 150 dollars, and a harness for 87 dollars. How much did he give for the whole?

35. A man bought 268 bushels of wheat for 287 dollars, 187 bushels of corn for 98 dollars, and 156 bushels of oats for 128 dollars. How many bushels of grain did he buy; and how much did he give for the whole?

36. Á man wishing to stock his farm, paid 197 dollars for a span of horses, 86 dollars for a yoke of oxen, 175 dollars for cows, and 169 dollars for sheep. How much did he give for the whole?

37. A butcher sold to one customer 157 pounds of meat, to another 159, to another 149, to another 97, and to another 68. How much did he sell to all?

38. A carpenter received 879 dollars for one job, for another 786, for another 693, for another 587, for another 476, and for another 368 dollars. How much did he receive in all?

39. A grocer bought 375 dollars worth of sugar, 287 dollars worth of molasses, 168 dollars worth of tea, 158 dollars worth of coffee, and 137 dollars worth of spices. What was the amount of his bill?

40. A merchant bought calico to the amount of 568 dollars, silks to the amount of 479 dollars, and broadcloths to the amount of 784 dollars. He sold them so as to gain 134 dollars on the calico, 178 dollars on the silks, and 242 dollars on the broadcloths. How much did he sell them for; and what was the amount of his gains?

41. A merchant pays 560 dollars a year for store rent, 386 dollars to one clerk, 267 to another, and 369 dollars for various other expenses. What does it cost him a year to carry on his business?

42. A man receives 568 dollars rent for one store, 479 for another, and 276 for another. How much does he receive for them all?

43. The distance from Boston to Springfield is 98 miles, from Springfield to Pittsfield is 53 miles, from Pittsfield to Albany is 49 miles, from Albany to Auburn is 173 miles, and from Auburn to Buffalo is 152 miles. How far is it from Boston to Buffalo?

44. A man bought a quantity of oil for 2649 dollars, and candles for 1367 dollars; he afterwards sold them so as to gain 568 dollars on the oil, and 346 dollars on the candles. How much did he receive for the whole?

45. In 1840, the state of Maine contained 501793 inhabitants; New Hampshire, 284574; Vermont, 291948; Massachusetts, 737699; Connecticut, 309978; and Rhode Island, 108830. What was the population of New Eng

land?

46. In 1840, the state of New York contained 2428921 inhabitants; New Jersey, 373306; Pennsylvania, 1724033; and Delaware, 78085. What was the population of the Middle States?

47. In 1840, the state of Maryland contained 470019* inhabitants; Virginia, 1239797; North Carolina, 753419; South Carolina, 594398; Georgia, 691392; Alabama, 590756; Mississippi, 375651; and Louisiana, 352411. What was the population of the Southern States?

48. In 1840, the state of Tennessee contained 829210 inhabitants; Kentucky, 779828; Ohio, 1519467; Michigan 212267; Indiana, 685866; Illinois, 476183; Missouri, 383702; and Arkansas, 97574. What was the population of the Western States?

49. In 1840, the territory of Florida contained 54477 inhabitants; Wisconsin, 30945; Iowa, 43112; and the District of Columbia, 43712; on board vessels of war, 6100. What was the population of the Territories and naval service of the United States?

50. What was the whole population of the United States in 1840?

According to the Official Revision,

SECTION III.

SUBTRACTION,

MENTAL EXERCISES.

ART. 30. Ex. 1. Henry having 7 peaches, gave 4 to his sister how many had he left?

OBS. To solve this question, consider what number added to 4 makes 7. Now from addition we know that 4 and 3 make 7; that is, 7 is composed of the numbers 4 and 3. It is evident, therefore, if one of these numbers be taken from 7, the other number will be left. Hence, 4 peaches from 7 peaches leave 3 peaches. Ans. 3 peaches.

2. James had 7 cents, and spent three of them how many had he left?

3. Jack has 6 marbles: how many more must he get to make 10?

4. A farmer having 9 cows, sold 5 of them: how many had he left?

5. A pound of raisins costs 11 cents, and a pound of sugar 8 cents: what is the difference in their prices?

6. In a stage coach there were 10 passengers, 6 of whom got out at a hotel : how many remained in the coach?

7. Dick bought a knife for 12 cents, and having but 7 cents in his pocket, agreed to pay the rest to-morrow: how much does he owe for it?

8. John gathered 8 quarts of chestnuts: how many more must he gather to make 14 quarts?

9. The cost of a cap is 13 shillings, and the cost of a comforter is 3 shillings: what is the difference in their cost?

10. Susan is 15 years old, and Harriet is only 9: what is the difference in their ages?

OBS. This Table is the reverse of Addition Table. Hence, if the pupil has thoroughly learned that, it will cost him but little time or trouble to learn this. (See observations under Addition Table.)

11. 4 from 7 leaves how many? 4 from 9? 4 from 12? 4 from 8? 4 from 11? 4 from 13?

12. 6 from 8 leaves how many? 6 from 10? 6 from 13? 6 from 11? 6 from 15? 6 from 12? 6 from 16?

13. 7 from 9 leaves how many? 7 from 11? 7 from 14 7 from 15? 7 from 16? 7 from 13? 7 from 17 ? 14. 8 from 11? 8 from 13? 8 from 16? 8 from 12? 8 from 15? 8 from 17? 8 from 14? 8 from 18?

15. 9 from 12? 9 from 14? 9 from 11? 9 from 13? 9 from 17? 9 from 15? 9 from 18? 9 from 19?

16. 2 from 4 leaves how many? 2 from 14? 2 from 24? 2 from 34? 2 from 44? 2 from 54? 2 from 64? 2 from 74? 2 from 84? 2 from 94?

17. 3 from 6 3 from 16? 3 from 26? 3 from 36 ? 3 from 45? 3 from 56? 3 from 66? 3 from 76? 3 from 86? 3 from 96?

18. 4 from 9? 4 from 29? 4 from 39? 4 from 49? 4 from 50? 4 from 69? 4 from 79? 4 from 89? 4 from 99?

19. 6 from 15? 6 from 25? 6 from 35? 6 from 45?

6 from 55? 6 from 65? 6 from 75? 6 from 95 ?

20. 8 from 14? 8 from 24? 8 from 34? 8 from 44? 8 from 54 8 from 64? 8 from 74? 8 from 84? 8 from 94?

21. A gentleman bought a coat for 15 dollars, and a hat for 6 dollars: how much more did his coat cost than his hat?