## Daboll's Schoolmaster's Assistant: Improved and Enlarged, Being a Plain Practical System of Arithmetic, Adapted to the United States |

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Page 7

... Compound Fractions , Vulgar and Decimals Insurance Interest , Simple - by

Decimals Compound by Decimals Inverse Proportion Involution

Multiplication , Simple application and use of Supplement to Compound

Numeration ...

... Compound Fractions , Vulgar and Decimals Insurance Interest , Simple - by

Decimals Compound by Decimals Inverse Proportion Involution

**Loss**and GainMultiplication , Simple application and use of Supplement to Compound

Numeration ...

Page 126

INSURANCE , IS a premium at so much per cent . allowed to persons and offices

, for making good the

happen from storms , fire , & c . EXAMPLES . 1. What is the insurance of 7251.

INSURANCE , IS a premium at so much per cent . allowed to persons and offices

, for making good the

**loss**of ships , houses , mer : chandize , & c . which mayhappen from storms , fire , & c . EXAMPLES . 1. What is the insurance of 7251.

Page 138

EQUATION OF PAYMENTS , Is finding the equated time to pay at once , several

debts due at different periods of time , so that no

party . RULE . Multiply each payment by its time , and divide the sum of the ...

EQUATION OF PAYMENTS , Is finding the equated time to pay at once , several

debts due at different periods of time , so that no

**loss**shall be sustained by eitherparty . RULE . Multiply each payment by its time , and divide the sum of the ...

Page 140

S .

profit or

ur tall in the price of their gorais 50 as lu gain or lose so much per cent . or ...

S .

**LOSS**AND GAIN , Is a rule by which merchants and traders discover theirprofit or

**loss**in buying and selling their goods : it also ille structs them how to riseur tall in the price of their gorais 50 as lu gain or lose so much per cent . or ...

Page 141

First see what the gain or

gain or

If I buy Irish linen at 2s . per yard , and sell it again at 2s . 8d . per yard ; what do ...

First see what the gain or

**loss**is by subtraction ; then As the price 1 cost : is to thegain or

**loss**: : so is 1001 . or $ 100 , to the gain or**loss**per cent . EXAMPLES . 1.If I buy Irish linen at 2s . per yard , and sell it again at 2s . 8d . per yard ; what do ...

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### Common terms and phrases

allowing amount annuity annum answer Bought Bring bushels called cent cloth common contain continue cost cube currency cyphers decimal demand denominator difference Divide dividend divisor dollars dols Entered equal EXAMPLES farthings Federal Money feet figure Find the value fraction gain gallon give given given number given sum gross half hhds hundred inches interest June least left hand length less loss lowest measure merchant miles mills mixed months Multiply neat weight New-York paid payment pence period piece pound principal proportion quantity question quotient ratio received Reduce remainder right hand RULE sell share shillings simple sold solid sort square root stands sterling subtract sugar Table tare term third thousand unit whole whole number wine yards