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CHAP. IV.

MULTIPLICATION.

Note to Teachers. In the second and third sections of this chapter, the learners are required to find the products of factors as high as 10 and 20. There are few scholars, who will easily commit these products to memory; and it will, therefore, be necessary to adopt a mental process, by which they may readily be found. The following example will show the process.

Question. How many are times 16 Solution. 16 is made up of 10 and 6. Eight times ten are eighty; eight times six are forty-eight. 80 and 48 are 128.

SECTION 1.

1. On the Fourth of July, George and Richard went to the Celebration, and whenever George spent 1 cent, Richard spent 7. In the course of the day, George spent 6 cents. How many did Richard spend?

Solution. Richard must have spent six times seven cents. 6 times 7 are 42.

2. If 4 yards of cloth are required to make 1 cloak, how many yards are required to make 5 cloaks?

3. If 1 boat will carry 5 men across the river, how many men will 3 boats of the same size carry?

4. If a man can earn 8 dollars in one week, how many dollars can he earn in 3 weeks?

5. If a traveller ride 6 miles in one hour, how many miles can he ride in 9 hours?

6. In a garden, there are 5 rows of plum trees; 8 trees in each row. How many trees are there in the garden? 7. In a field there are 8 rows of apple trees; 5 trees in each row. How many trees are there in the field?

8. There were 7 boys, who gave a poor man, 4 cents apiece. How many cents did the man receive?

9. How many merit-marks will Susan get in 6 days, provided she gets 4 every day?

10. How many errors will Jane make in 8 days, provided she makes 3 errors every day?

11. If the price of 1 quart of nuts be 7 cents, for how many cents can you buy 7 quarts?

12. If you should read 9 pages every day, how many pages would you read in 8 days?

13. How many dollars must I pay for 9 yards of cloth, that is worth 6 dollars a yard?

14. How many dollars must I pay for 9 barrels of flour, when the price is 7 dollars a barrel?

15. If 4 bushels of wheat are required for 1 barrel of flour, how many bushels are required for 8 barrels ?

16. What is the cost of 7 reams of letter paper, that is sold at 6 dollars per ream?

17. How much will a market-man get for 10 melons, if he sell them at 9 cents apiece?

18. If a man can earn 9 dollars in one month, how many dollars can he earn in 6 months?

SECTION 2.

1. John and Henry together, caught 13 fishes every morning; and it always happened, that John caught 10 of them, and Henry 3. Now how many did each boy catch in 6 mornings? Then how many did they both catch in 6 mornings?

2. 10 and what number make 13? How many are 6 times 10? 6 times 3? How many are 60 and 18?— Then 6 times 13 are how many?

3. If the diamond in a ring cost 10 dollars, and the ring 4 dollars, what does the diamond-ring cost? What would 5 diamonds cost? What would 5 rings cost?Then what would 5 diamond-rings cost?

4. 10 and what number make 14? How many are 5 times 10? 5 times 4? How many are 50 and 20?— Then 5 times 14 are how many?

5. A Northern hunter received a bounty of 10 dollars from the state, and 5 from the county, for killing a wolf: how much did he receive from both? How much would he receive from the state for killing 7 wolves? How much from the county for killing 7-Then how much from state and county both for killing 7?

6. 10 and what number make 15? How many are 7 times 10? 7 times 5? How many are 70 and 35 ?— Then 7 times 15 are how many ?

7. A man hired a horse and gig, to pay 10 cents a mile for the horse, and 6 cents a mile for the gig. How

much a mile did he pay for both? How much for the horse 8 miles? How much for the gig 8 miles how much for the horse and gig, both 8 miles?

Then

8. 10 and what number make 16? How many are 8 times 10? 8 times 6? How many are 80 and 48 ?Then 8 times 16 are how many?

9. If a man gather 10 barrels of apples, and a boy 7 barrels, in a day, how many barrels do they both gather? How many barrels can the man gather in 9 days? How many barrels can the boy gather in 9 days ?-Then how many barrels can they both gather in 9 days?

10. 10 and what number make 17? How many are 9 times 10? 9 times 7? How many are 90 and 63 ?— Then 9 times 17 are how many?

11. If a man eat 10 ounces of meat in a day, and his wife eat 8 ounces, how many ounces do they both eat in a day? How many ounces will the man eat in 4 days? How many ounces will the wife eat in 4 days?Then how many ounces will they both eat in 4 days?

12. 10 and what number make 18? How many are 4 times 10? 4 times 8? How many are 40 and 32 ?Then 4 times 18 are how many?

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13. If a company of soldiers march 10 miles in the forenoon, and 9 miles in the afternoon, how many miles do they march in a day? How many miles would they march in 6 forenoons? How many in six afternoons? Then how many miles in 6 days?

14. 10 and what number make 19? How many are 6 times 10? 6 times 9? How many are 60 and 54 ?Then 6 times 19 are how many?

15. How many are 6 times 10? 6 times 2? Then how many are 6 times 12?

16. How many are 7 times

how many are 7 times 13?

10?

17. How many are 8 times 10?

how many are 8 times 14?

18. How many are 9 times 10? many are 9 times 15?

how

7 times 3?-Then

8 times 4?-Then

9 times 5-Then

19. How many are 10 times 10? 10 times 6 -Then how many are 10 times 16?

20. How many are 3 times 10? 3 times 7?—Then how many are 3 times 17?

21. How many are 2 times 10? how many are 2 times 18?

22. How many are 5 times 10? how many are 5 times 19?

23. How many are 4 times 10? how many are 4 times 19?

SECTION 3.

2 times 8?-Then

5 times 9?-Then

4 times 9?—Ther

1. Albert spends 11 cents every month, for stationary. How many cents will he spend in 3 months?

2. How many are 2 times 11? 3 times 11? 4 times 11? 5 times 11? 6 times 11? 7 times 11? 8 times 11? 9 times 11? 10 times 11?

3. If you should write 11 copy-lines every day, how many copy-lines would you write in 10 days?

4. If a pound of Malaga raisins cost 12 cents, how many cents will 4 pounds of raisins cost?

5. How many are 2 times 12? 3 times 12? 4 times 12? 5 times 12? 6 times 12? 7 times 12? 8 times 12? 9 times 12? 10 times 12?

6. If you should read 12 verses every morning, how many verses would you read in 9 mornings?

how

7. Suppose a steam boat will go 13 miles in an hour;many miles will it go in 5 hours? 8. How many are 2 times 13? 3 times13? 3 times13? 4 times13? 5 times 13? 6 times 13? 7 times 13? 8 times 13? 9 times 13? 10 times 13?

9. If a labourer can earn 13 dollars in a month, how many dollars can he earn in 8 months?

10. If it take 14 men to navigate one ship, how many men will it take to navigate 6 ships?

11. How many are 2 times 14? 3 times 14? 4 times 14? 5 times 14? 6 times 14? 7 times 14? 8 times 14? 9 times 14? 10 times 14?

12. If a pound of honey be worth 14 cents, how many cents are 7 pounds of honey worth?

13. If a carpenter can make 15 hat boxes in a day, how many hat boxes can he make in 2 days?

14. How many are 2 times 15? 3 times 15? 4 times15! 5 times 15? 6 times 15? 7 times 15? 8 times 15? 9 times 15? 10 times 15?

15. If a shoemaker make 15 pairs of shoes in a week, how many pairs will he make in 10 weeks?

16. How much would a man earn in 3 months, provided his wages were 16 dollars a month?

17. How many are 2 times 16? 3 times 16? 4 times 16? 5 times 16? 6 times 16? 7 times 16? 8 times 16? 9 times 16? 10 times 16?

18. How much would a man spend in 9 months, if his expenses were 16 dollars a month?

19. If 17 barrels of flour can be carried on one wagon, how many barrels may be carried on 4 wagons?

20. How many are 2 times 17? 3 times 17? 4 times17? 5 times 17? 6 times 17? 7 times 17? 8 times 17? 9 times 17? 10 times 17?

21. If one hogshead of molasses be worth 17 dollars, what is the value of 8 hogsheads of molasses?

22. If 5 men should pay me 18 dollars apiece, how many dollars should I receive from them all?

23. How many are 2 times 18? 3 times 18? 4 times 18? 5 times 18? 6 times 18? 7 times 18? 8 times 18? 9. times 18? 10 times 18?

24. If I should pay to 7 men, 18 dollars apiece, how many dollars should I pay to all of them?

25. How much would a farmer get for 3 cows, if he should sell them for 19 dollars apiece?

26. How many are 2 times 19? 3 times 19? 4 times19? 5 times 19? 6 times 19? 7 times 19? 8 times 19? 9 times 19? 10 times 19?

27. If you answer 19 questions at every recitation, how many would you answer in reciting 6 times?

28. Paper is generally packed in reams, of 20 quires each. How many quires are there in 4 reams?

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