18. One winter morning the thermometer in the schoolroom registered 49°. In an hour the temperature increased 19°. What did the thermometer then register?

19. What is the distance from Chicago to Milwaukee, if, after travelling 57 mi. from Chicago, I still have 23 mi. further to go to reach Milwaukee? 20. A rope was cut into two pieces. If the shorter piece was 5 yd. 1 ft. and the longer 45 ft., how many feet long was the rope?

21. How many quarts of oats are there in a bin containing 2 bu. 28 qt.? How many pounds?

22. A field is 42 rd. long and 28 rd. wide. How many rods of fencing are required to enclose it?

23. A bicycle dealer who had 88 bicycles in stock received a shipment of 4 doz. more. How many did

he then have in stock?

24. Find the number of hours in 2 da. 17 hr. Find the number of sheets of paper in 2 quires 12 sheets.

25. I paid 25 units of $100 each for a lot and built a house on it at a cost of 36 units of $100 each. Find the total cost.

Lesson 6

1. Find the sum of 28 and 34; of 62 and 45. Find the sum of 48 and 27; of 75 and 89.

2. Find the sum of 56 and 17; 73 and 68; 56, 17, 68. How do you find the sum of three numbers like 56, 17, 68? Find the sum of 45, 24, 53.

3. Find the sum of the following numbers: 120, 32; 140, 53; 134, 65; 128, 76; 184, 78; 256, 89.

4. Find the sum of: 25, 32, 69; 48, 36, 63; 77, 56, 99; 91, 84, 32; 67, 97, 83; 54, 69, 27.

5. A lady pays $17 for a bedstead, $61 for a dresser, and $21 for a washstand. Find the entire cost.

6. A dealer bought three carloads of coal. The first weighed 24 T., the second 22 T., and the third 19 T. Find the total amount.

7. The sides of a triangular field are respectively 36 rd., 45 rd., and 53 rd. Find its perimeter.

8. Monday a grocer sold goods to the value of $56, Tuesday to the value of $62, and Wednesday to the value of $47. Find his sales for the first half of the week.

9. A horse cost $125 and the harness $16. What was the cost of both ?

10. An arithmetic cost 35, a history 27 more. Find the cost of the history. Of both.

11. A grocer paid $ 47 for sugar and $ 28 more than that amount for flour. What did both cost him?

12. A man began business with 38 thousand dollars and in ten years cleared 58 thousand dollars. How much was he then worth?

13. How many days are there in the three spring months? In the three summer months? In the

three winter months?

14. A fruit dealer sold 6 oranges for 15, 9 others for 24, and a dozen of another kind for 45. How many oranges did he sell and what did he get for

them ?

15. State how you solved examples 5-14. State how you will solve the remaining examples in this lesson.

16. A young man earns $7 a week, his older brother $4 more, and his father $6 more than the older brother. What do all three earn a week?

17. A man paid $52 for a buggy and as much more for a horse. Find the cost of both.

18. If I paid 25 hundred dollars for one lot, 18 hundred dollars for another, and 22 hundred dollars for a third lot, what was the entire cost?

19. How many nickels are there in three piles of which the first contains 23, the second 16, and the third 11. What is their value in dollars and cents?

20. If it was 15 min. after 9 o'clock 17 min. ago, what time will it be in 24 min.?

21. A young man entered the navy 16 yr. ago at the age of 25. How old will he be 12 yr. from now?

22. A farmer divided his farm among his three sons, giving to the eldest 85 A., to the second son 76 A., and to the youngest 68 A. What was the size of his farm?

23. A merchant bought clothes at $15 a suit and overcoats at $12 apiece, and sold them at an advance of $5 each. What must a customer pay for a suit of clothes and an overcoat?

24. A dealer bought lemons at 25¢ a dozen, and oranges at 35 a dozen. If he sold them so as to gain 10 a dozen, what did he receive for a dozen of each ?

25. Three children buy a hammock. The first contributes 754, the second 694, and the third 41 ø. What did the hammock cost?

SUBTRACTION

Lesson 7

STATEMENT OF BALANCE

Ex. 1. The other part = 9 in. — 5 in.

Ex. 2. The quantity left 3 gal. - 3 qt.

Give the statement of balance for each example in this lesson as you work it.

1. A string 9 in. long is cut into two parts one of which is 5 in. long. How long is the other part?

2. From a can containing 3 gal. of milk 3 qt. are poured out. How many quarts are left in the can?

3. If 2 gal. of milk are poured into an empty can that will hold 15 qt., how many quarts are needed to fill it?

4. In examples 2 and 3 the quantities to be subtracted are not expressed in terms of the same unit. Explain this statement. What must be done with quantities expressed in terms of different units before you can find their difference?

5. A boy has 8 nickels and buys 6 oranges at a nickel each. Find how many cents he has left.

6. Two boys were playing a game of marbles. If one of them got 7 out of 15, how many did the other get?