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COMPOUND NUMBERS.

65. ENGLISH MONEY is the national currency of Great Britain.

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REMARK.-The English SOVEREIGN (= 1 pound) is worth $4.84. A Crown is worth $1.21; a Shilling $0.242; a Penny $0.020; a Farthing $0.005-that is, 5

mills.

EXERCISES.

1. In 1 pound how many pence?
2. In 1 pound how many farthings?
3. In 1 shilling how many farthings?

Ans. 240 d.

Ans. 960 far.

Ans. 48 far.

4. In 1 guinea how many farthings? Ans. 1008 far.

5. In 1 crown how many pence?

6. In 7 pounds how many dollars?
7. In 9 shillings how many dollars?

-Ans. 60 d.

Ans. $33.88

Ans. $2.178

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8. In 1 £ 1 s. 1 d. 1 far. how many dollars?

9. How many cents in 3 d.? 5 d.? 9 d.? 6 d.? 2 d.? 11 d.? 7 d.? Ans. $0.0601; $0.100%, etc. 10. How many dollars in 2 s.? 3 s.? 4 s.? 5 s.? 6 s.? 7 s.? 8 s.? 9 s.? 10 s.? Ans. $0.484; $0.726, etc. 11. How many dollars in 1 s. 2 d.? 2 s. 3 d.? 7 s. 6 d.? Ans. $0.282; $0.5441, etc.

5 s. 6 d.? 7 s. 8 d.?

12. How many dollars in 10 sovereigns? 13 sovereigns? 15 sovereigns? Ans. $48.40, etc.

66. TROY WEIGHT is used in weighing gold, silver,

and precious stones.

TABLE.

24 grains (gr.) make 1 pennyweight. 20 pennyweights " 1 ounce

12 ounces

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dwt.

Oz.

lb.

REMARK.-A Pound is the weight of 22.794422 cubic inches of distilled water.

EXERCISES.

Ans. 5760 gr.

Ans. 480 gr.

1. In 1 pound how many grains?
2. In 1 ounce how many grains?
3. In 1 pound how many pennyweights?

Ans. 240 dwt.

4. How many grains in 9 pounds? 18 pounds? 36 pounds? 81 pounds? 162 pounds? First Ans. 51840. 5. In 5760 grains how many pennyweights? Ounces? Ans. 240 dwt.; 12 oz.; 1lb. 6. In 51840 grains how many pennyweights? Ounces? Pounds? Ans. 2160 dwt.; 108 oz.; 9 lb.

Pounds?

7. In 622080 gr. how many lb.?

Ans. 108 lb.

67. AVOIRDUPOIS WEIGHT is used in weighing groceries, and cheap commodities of every description.

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T.

20 hundredweight". 1 ton

REMARK.-A Pound is the weight of 27.701554 cubic inches of

distilled water.

EXERCISES.

1. In 1 ton how many pounds? How many ounces? drams? Ans. 2000 lb.; 32000 oz.; 512000 dr.

2. In 1 pound how many drams?

Ans. 256 dr. 3. How many ounces in 13 lb.? 26 lb.? 39 lb.? 52 lb.? 65 lb.? 78 lb. ? First Ans. 208 ounces.

4. How many pounds in 416 oz.? 2912 oz.? 8736 oz.? 17472 oz.? First Ans. 26 pounds.

68. APOTHECARIES WEIGHT is used in mixing medicines.

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REMARK.-A pound is the same as the Pound Troy.

EXERCISES.

1. In 1 pound how many drams? How many scruples? grains? Ans. 96 3; 288 7; 5760 gr. 2. In 28800 grains how many pounds? Ans. 5 lb. 3. In 13 how many grains?

Ans. 480 gr.

69. Long Measure is used in measuring the length of all quantities except cloth.

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REMARK 1.-The Imperial Yard is the length of a pendulum vibrating once a second at London, temperature 624 degrees Fahrenheit. This length is 39.1393 inches.

REMARK 2.-This line measures exactly

EXERCISES.

1 INCH.

1. In 1 mile how many rods? yards? feet? inches? Ans. 320 r.; 1760 yd.; 5280 ft.; 63360 in.

2. In 1 rod how many feet?

Ans. 161. 3. How many furlongs in 93 miles? 15g miles? 27 miles?

Last Ans. 222 fur.

4. How many rods in 33 feet? 66 feet? 99 feet? 198 feet? 297 feet? Last Ans. 18 r. 5. In 443520 inches how many. miles? Ans. 7 m.

70. CLOTH MEASURE is used in measuring goods bought or sold by the yard.

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REMARK.-The Common Yard is 36 inches in length.

EXERCISES.

1. If a yard of cloth is worth $16, what is 1 eighth of a yard worth? What are 3 eighths worth? 5 eighths? 7 eighths? Last Ans. $14. 2. If 3 quarters of a yard of calico are worth 15 cts. what is 1 yard worth?

Ans. 20 cts.

3. What is the value of 7 yards of broadcloth at $16 per yard?

Ans. $118.

4. How many inches in 1 quarter of a yard? In 1 eighth?

5. How many feet in 1 yard?
6. How many inches in 9 yards?

First Ans. 9 in.

Ans. 3 feet.

Ans. 324 in.

71. SQUARE MEASURE is used in measuring surfaces, as land, plastering, etc.

TABLE.

144 square inches (sq. in.) make 1 square foot. sq. ft.

9 square feet

301 square yards
40 square rods
4 roods

640 acres

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1. In 1 acre how many square rods? Ans. 160 sq.r. 2. In 1 acre how many square yards? square feet? square inches?

Ans. 4840 sq. yd.; 43560 sq. ft.; 6272640 sq. in. 3. In 75271680 sq. in. how many A.?

Ans. 12 A.

REMARK 2.—Gunter's Chain is used in measuring land. It is 4 rods long, and consists of 100 equal links.

4. How many links in 1 rod?
5. How many chains in 1 mile?
6. How many sq. r. in 1 sq. chain?

Ans. 25 links.

Ans. 80 chains.

Ans. 4x4-16 sq. r.

7. How many sq. chains in 1 acre?

Ans. 160÷16=10 sq.

chains.

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