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DENOMINATE NUMBERS.

1. Sixteen and one half feet are 1 rod.

2. Three hundred twenty rods are 1 mile.

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(a) How far is it from the first telegraph pole to the thirty-third ?

9. The roads in the country are usually 4 rods wide. A 4-rod road is

10. A 100-foot street is

feet wide.

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(c) Change 40 rd. to feet. (e) Change 7 mi. to rods.

REVIEW.

12. When hay is $12 a ton, 3000 lb. cost 13. When oats are 30¢ a bushel, 96 lb. cost

14. When wheat is 804 a bushel, 180 lb. cost

(f) When corn (not shelled) is 45¢ a bushel, how much will 3640 lb. cost?

(g) When coal is $5.40 a ton, how much will 2600 lb. cost?

*Discover by actual measurement the number of yards in a rod.

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1. A pile of wood 8 feet long, 4 feet wide, and 4 feet high (or its equivalent) is called a cord.

(a) How many cubic feet in a rectangular solid 8 feet by 4 feet by 4 feet?

2. A pile of wood 16 feet long, 4 feet wide, and 4 feet high contains cords.

(b) How many cubic feet in 2 cords?

3. A pile of wood 8 feet long, 4 feet wide, and 6 feet high contains

cords. (c) How many cubic feet in 1 (e) How many cubic feet in 5

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cords? (d) In 3 of a cord? cords? (f) In 63 cords?

of a 2-inch square. of a 2-inch cube.

of a 3-inch square.

7. A 2-inch cube

=

of a 3-inch cube.

(g) Find the area of a surface 12 ft. by 24 ft.*

(h) Find the volume of a solid 12 ft. by 8 ft. by 4 ft.†

*Take care that the pupil understands that he does not (cannot) multiply 24 ft. by 12 ft., but 24 square feet by 12, or 12 square feet by 24.

+In this problem the pupil multiplies 12 cubic feet by 8, and the product thus obtained by 4.

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9. Three sevenths of 28 are 2 thirds of

10. Six sevenths of 28 are 3 fourths of

(i) Three sevenths of 364 are 1 half of what number? (j) One seventh of 434 is 2 thirds of what number?

11. Twenty is

of 25. If 25 bags of salt are

worth $15, 20 bags of salt are worth

dollars.

(k) If 25 acres of land are worth $640, how much are 20 acres worth at the same rate?

12. Twenty-five is

of 20, or

and

times 20. If 20 bushels of apples are worth $12,

25 bushels of apples are worth

dollars.

(1) If 20 barrels of salt are worth $22.40, how much are 25 barrels of salt worth at the same rate?

13. If 12 qt. of nuts are worth 404, 9 qt. of nuts are worth

cents.

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18. Russel earned 604; he spent 10% of his money for a tablet and 20% of it for a book; the tablet cost

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cents

19. Ten per cent of the sheep in a certain flock were black; there were 8 black sheep; in all there were

sheep.

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(g) A lawyer's commission for collecting money was 7%; he collected $635. How much of the money should. he keep and how much should he "pay over" to the man for whom he collected the money?

(2)

2. 18 is 40% of

(h) 346 is 40% of what?

(j) 534 is 75% of what?

(1) $36 is 3% of what?

18 is 60% of

(i) 345 is 60% of what?
(k) 534 is 66% of what?
(m) $84 is 7% of what?

(n) A lawyer's commission for collecting money was 7%; his commission amounted to $63. How much did he collect and how much should he "pay over" to the man for whom he collected the money?

3. 18 is

4. 33 is

(3)

33 is

-% of 55.

18 is

per cent of 45. per cent of 44. -% of 27. (0) Eighteen dollars are what per cent of $600 ? means, find how many hundredths of $600, $18 are.

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$18 are as many per cent of $600 as $6 are contained times in $18.

$18 are 3% of $600.

5. $84 are

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