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Questions for Exercise

209

Reduction

63

of Currencies, do. of Coin

89, 93

Rule of Three Direct, do. Inverse

100, 108

Double

148

Rules, for reducing the different currencies of the

several United States, also Canada and No-

va-Scotia, each to the par of all others

96, 97

Application of the preceding

98

Short Practical, for calculating Interest 126

for casting Interest at 6 per

cent.

215

- for finding the contents of Superfices & Solids 220

to reduce the currencies of the different

States, to Federal Money

218

Rebate, A short method of finding the, of any giv-
en sum for months and days

217

Subtraction, Simple

25

Compound

45

Table, Numeration and Pence

9

Adition, Subtraction, and Multiplication 10

of Weight and Measure

11

of Time and Motion

showing the number of days from any day

of one month, to the same day in any other

month

172

showing the amount of U. or 1 dollar, at 5 &

6 per cent. Compound Interest, for 20 years 232

shewing the amount of 1l. annuity, forborne

for 31 years or under, at 5 and 6 per cent.

Compound Interest

233

showing the present worth of 11. annuity, for

31 yrs. at 5 & 6 per c. Compound Interest

of cents, answering to the currencies of the

United States, with Sterling, &c.

236

showing the value of Federal Money in

other currencies

237

Tare and Trett

114

Useful Forms in transacting business

238

Weights of several pieces of English, Portuguse, &

French, gold coins, in dollars, cents, & mills 234

of English & Portuguese gold, do. du. 235

of French and Spanish gold, do.

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DABOIL's

SCHOOLMASTER's ASSISTANT.

ARITHMETICAL TABLES.

Numeratiune Table.

Pence Tables

S. d.

50

36

sliundreds of: Millions.
QoTens of Millions.
covoHundreds of Thousands.

0.00 Millions
covou Tens of Thousands.

O YOUA Thousands.

o aperto io landreds. on Tour of CO Tens.

voor es 10 Units.

d.

d. s. 20 is ] 8

12 is 1 26 .24 2 40 3 4

3 50 4 2 48 4 60 5 0 60 5 70 5 10 72 6 80

6 81 84 7 90 7 61

96 8 100 8 4 108 9 110 9 2 120 10

120 10 0 152 11 6 5 4 S 7 6 5 8 7 5

6 5 8 h 0

make 98 4 farthings 1 penny, d

$ 12 pence, 1 shilling, s © 20 shillings, 1 pound, ...

8 7

ADDITION AND SUBTRACTIOX TABLE.

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1 | 2 | 3 4 | 5 16 1 81 9 | 10 | 11 | 12 2 4 5 | 6 | 7 | 8 | 9 | 10 | 11 12 | 13 | 1-3 3 / 5 6 | 7 | 8 | 9 10 | 11 12 | 13 | 14 | 15 41 61 7.1 8 9 10 | 11 | 12 | 13 | 14 | 15 | 16 51 7 | 8 | 9 | 10 | 11 12 | 13 | 14 | 15 | 16 | 17 6 | 8 | 9 | 10 11 12 | 13 | 14 15 | 16 | 17 | 18 7| 9 | 10 11 12 | 13 | 14 | 15 16 | 17 | 18 | 19 8 | 10 | 11 | 12 | 13 14 | 15 | 16 | 17 18 19 | 20 9 11 | 12 | 13 14 | 15 | 16 | 17 | 18 | 19 20 | 21 10 | 12 | 13 | 14 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22

MULTIPLICATION TABLE.

8

2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 10 11 14 2 4; 6 | 8 10 | 12 | 14 16 18 20 22 24 3 61 9 | 12 | 15 | 16 | 21 | 24 ;, 27; 301 SS/ 56

12 16 20 24 28 32 36 40 441 48 5-10 15 20 25 30 35 40 45 50 55 60 (12_18 | 24 | 50 | 55 | 42 | 48 | 34 60, 661 72

14:21; 28 | 35 | 42 | 49 | 56 | 69 | 70 771 84 16:24:39 40 | 48 56 64 72 801 881 96

18% 36 : 45 | 54 | 65 727 901 99|108 16:30 | 10 | 50 | 60 | 70 | 80 | 90 | 1001101120 ili 93 3:3 | 44 | 55 | 66 | 77 | 88 | 99 | 1101121/132

| 24 | 56 | 48 | 6072 : .84 : 96 108 12132/144

81 |

To learn this Table : Find your multiplier in the left hand column, and the multiplicand a-top, and in the common angle of meeting, or against your multiplier, along at the right hand, and under your multiplicand, you will find the product, or answer.

2. Troy It'eight. 24 grains (gr.) make 1 penny-weight, marked 20 penny-weights,

1 ounce, -12 ounces,

1 pound,
S. Aupirdupois !Peight.

16 drams (dr.) make 1 ounce, 16 ounces,

1 pound,

lb. os pounds, 1 quarter of a hundred weight,

gr. 4 quarters,

1 hundred weight, cwt. 20 hundred weight, 1 ton,

T. By this weight are weighed all coarse and drossy goods, grocery wares, and all metals except gold and silver.

4. Apothecaries Weight. 20 grains (gr.) make 1 scruple, 3 scruples,

1 dram, 8 drams,

1 ounce, 12 ounces,

1 pound, Apothecaries use this weight in compounding their medicines.

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5. Cloth Measure.

4 nails (na.) make 1 quarter of a yard, gr.' ,4 quarters,

1 yard,

yd. 3 quarters,

1 Ell Flemish, E. Fl. 5 quarters,

1 Ell English,

E. E. 6 quarters,

1 Ell French, E.Fr.

6. Dry Measure. 2 pints (pt.) make 1 quart,

gt. 3 quarts,

1 peck,

nk. 4 pecks,

i bushel, This measure is applied to grain, beans, llax-seed, salt, ats, oysters, coai, &c

bu.

in Vine Measure.

pt.

4 gills (gi.) make 1 pint,
2 pints,
I quart,

qt.
4 quarts,
1 gallon,

gal.
314 gallons,
1 barrel,

bl.
42 gallons,
1 tierce,

tier.
63 gallons,
1 hogshead,

bhd. 2 hogsheads, 1 pipe,

Pi

p. 2 pipes,

1 tun, All brandies, spirits, mead, vinegar, oil, &c. are measured by wine measure. Note.-231 solid inches, make a gallon.

yd.

8. Long Measure. s barley corns (b. c.) make 1 inch, marked in. 12 inches,

1 foot,

ft. Sfeer,

1 yard, 55 yards,

1 rod, pole, or perch, rd. 40 rods,

1 furlong,

fur. 8 furlongs,

1 mile, S miles,

1 league,

lea. 694 statute miles,

1 degree, on the earth. 360 degrees, the circumference of the earth.

m.

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The use of long measure is to measure the distance of places, or any other thing, where length is considered, without regard to breadth.

N. B. In measuring the height of horses, 4 inches make 1 hand. In measuring depths, six feet make 1 fathom, or French toise. Distances are measured by a chain, four ruds long, containing one hundred linke.

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