of

15. What is the sum of 13 and 19? of 15 and 17? of 17 and 18? of 22 and 28? of 25 and 27? 29 and 11? of 17 and 31 of 24 and 36? of 33 55? of 18 and 69 of 28 and

and 44? of 35 and 19 of 41 and 51?

of 48 and 68? of 96

of 43 and 63 ?
of 43 and 63

and 85?

16. What is the sum of 56 and 65?

of 57 and 68

73 and 67?

and 47

of 39 and 69?

of 59 and 95?

of 86 and 54 of 37 and 73? of

of 62 and 83 of 44 and 66 of 82 ?

of 20 and 95 ? of 20 and 95 of 13 and 37 of 99 and 89? of 47 and 89? of 98 and 57?

Note.-In the same manner the teacher may continue these exercises for a long time. The scholars soon become deeply interested and frequently resort to it as a pastime. (See suggestions on different modes of teaching, in the latter part of this work, also Free School Journal, of the State of Wisconsin, Vol. 1, for 1850.)

§ 76.-1. What will 2 pounds of coffee cost at 13 cents a pound? 3 pounds? 4 pounds? 5 pounds? 2. At 6 cents a yard, what would 13 yards of calico cost?

3. At 7 cents a yard, what would 13 yards of twist cost?

4. If sugar is 8 cents a pound, how many pounds of coffee, at 11 cents a pound, must be given in exchange for 13 pounds of sugar?

5. If tea is 9' shillings a pound, what will it cost to supply a family of 13 persons one year, on the supposition that each person makes use of one pound?

6. What must I pay for 10 cows, at $13 a head? 7. What cost 11 hogs, at $13 a head?

8. If 13 oxen are bought for $12 each, what amount of money will be required to pay for them?

9. What is the sum of 8 times 12, 3 times 8, and 2 times 13?

11 *

10. Thirteen times 13 is how many? 7 times 13? 9 times 13?

11. 2 times 14 is how many ?

12. 3 times 14 is how many

how many

13.

4 times 14 is how

14.

16.

?

5 times 14 is how how many ? 15. 6 times 14 is how many ? 8 times 14 is how many ? 17. 9 times 14 is how many ? 18. 10 times 14 is how many? 19. 11 times 14 is how many? 20. 12 times 14 is how many?

21. At 14 cents a yard, what will 13 yards of cloth cost?

22. If a ton of hay cost $14, what will 14 tons cost? 23. A farmer sold 15 tons of hay at $3 a ton; what did it amount to?

24. At 15 shillings a cord, what will be the cost of 4 cords of wood?

25. A lady purchased 15 skeins of silk, at 5 cents a skein; what did she pay for the whole?

26. 7 times 15 is how many? 27. 6 times 15 is how many ? 28. 9 times 15 is how many? 29. 10 times 15 is how many ? 30. 8 times 15 is how many ? 31. 11 times 15 is how many 32. 12 times 15 is how many 33. 14 times 15 is how many

34. 13 times 15 is how many

?

?

?

?

35. 15 times 15 is how many?

36. At $2 a yard, what will 16 yards of broadcloth cost?

37. If 1 yard of cambric cost 3 shillings, what will 16 yards cost?

38. If you have to pay $4 for one barrel of flour,

what will you be required to pay for 16 barrels at the same rate?

39. 5 times 16 is how many?

40.

41.

6 times 16 is how many?

7 times 16 is how many? 42. 8 times 16 is how many?

43. 9 times 16 is how

how many?
how many?

44. 10 times 16 is how

45. 11 times 16 is how many 46. 12 times 16 is how

how many?

47. 13 times 16 is how many? 48. 14 times 16 is how many ? 49. 15 times 16 is how many ? 50. 16 times 16 is how many?

3 times 17 are how many times 8?
4 times 17 are how many times 5?

§ 77.-1. How many dollars must I pay for 17 pounds of tea, at $2 a pound?

2.

3.

3 ? 2?

3? 6?

6.

7.

8.

8? 5?

9? 6?

12?

9 ?

7 times 17 are how many times 6? 8 times 17 are how many times 7? 9 times 17 are how many times 8? 10? 7? 9. 10 times 17 are how many times 9? 11? 8? 10. 11 times 17 are how many times 10? 11. 12 times 17 are how many times 8? 12. 13 times 17 are how many times 12? 11?14? 13. 14 times 17 are how many times 13? 14. 15 times 17 are how many times 16? 15. 16 times 17 are how many times 17? 16. 17 times 17 are how many times 7?

§ 78.-1. A farmer having 80 sheep, sold 50 of them; how many had he left?

2. What is the difference between 35 and 40? 36 and 42?

3. What is the difference between 40 and 85? 54 and 72 ?

4. What is the difference between 76 and 95? 48 and 93 ?

5. What is the difference between 49 and 91? 52 and 75?

6. A man having 57 dollars, paid a note of 12 dollars, and gave 9 dollars more for a cow; how many dollars had he left?

7. A farmer sold 18 bushels of wheat, at $2 a bushel, and took in part payment a calf at $5, and the balance in flour at $4 a barrel; how many barrels of flour did he receive?

8. What will 18 hogs come to at $3 a piece?

9. If flour cost $5 a barrel, how many barrels can be bought with 6 barrels of pork, at $18 a barrel ? 10. At $7 an acre, what will 18 acres of land cost?

11. What will 18 horses cost at $50 a head?

12.

13.

of 16?

of 24 ?

8 times 18 is how many times 20 less 11? 9 times 18 is how many times 56 less 45? 14. 10 times 18 is how many times 84 less 75 ? 15. 11 times 18 is how many times 96 less 88 ? 16. 12 times 18 is how many times 17. 13 times 18 is how many times 18. 14 times 18 is how many times 19. 15 times 18 is how many times 20. 16 times 18 is how many times 21. 17 times 18 is how many times 22. 18 times 18 is how many times

of 48?

of 55 ?

of 36 ?

of 28 ?

of 15?

§ 79.-1. What will 2 yards of calico come to at 19 cents a yard? What will 3 yards cost at the same rate?

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of 1⁄2 of 50 ?

of 5 of 35 ? of of 81 ? of 3 of 33 ? divided by 7?

2. When flour is $7 a barrel, how many barrels can be bought with 4 barrels of fish, at $19 a barrel ? 3. What will 19 sheep come to, at $5 a head? 4. 6 times 19 is how many times 5. 7 times 19 is how many times 6. 8 times 19 is how many times 7. 9 times 19 is how many times 8. 10 times 19 is how many times 49 9. 11 times 19 is how many times 3 times 3 ? 10. 12 times 19 is how many times 11. 13 times 19 is how many times 12. 14 times 19 is how many times 13. 15 times 19 is how many times 14. 16 times 19 is how many times 15. 17 times 19 is how many times 11 less 3 times 7?

1

18

16. 18 times 19 is how many times

12 less 23 ?

of 2 times 9 ? of 6 times 12 ? of 4 times 10? of 7 times 9 ? of 92 less 11? of 11 times

10

of 12 times

17. 19 times 19 is how many times of 15 times 16 less 8 times 12 ?

§ 80.-1. What is the difference between 5 times. 8, and 2 times 20 ?

2. What is the difference between 3 times 20, and of 100?

3. What is of of 6 times 20?

4. If I exchange wheat at $3 a bushel, for 20 barrels of cider at $5 a barrel, how many bushels will I dispose of by the exchange?

5. If a man pay $20 a hundred for freight brought from New York city to Janesville, what will his bill amount to if he have 7 hundred weight brought?