The British Youth's Instructor, Or A New and Easy Guide to Practical Arithmetic ....

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S. Crowder, 1770 - 336 Seiten
 

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Seite 276 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Seite 266 - RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator: then reduce the new fraction to its lowest terms.
Seite 29 - It shows that the number before it is to be divided by the number after it. Thus 6 -i- 2 = 3 is read, 6 divided by 2 is equal to 3.
Seite 322 - Or, in measuring boards, you may multiply the length in feet by the breadth in inches, and divide the product by 12 ; the quotient will give the answer in square feet, etc. 21x18 Thus, in the last example, =31^sq. ft., as before. 12 5. If a board be 8 inches wide, how much in length will make a foot square ? RULE.— Divide 144 by the width; thus, 8)144 Ans.
Seite 307 - If it be required to extract the square root of a vulgar fraction, reduce the fraction to its lowest terms, then extract the square root of the numerator for a new numerator, and of the denominator for a new denominator; or, reduce the vulgar fraction to a decimal, and extract its root.
Seite 189 - If 40 poles in length and 4 in breadth, make an acre, what must be the length to make an acre, when the breadth is 15 poles ? Ans. 10 poles, 3yd.
Seite 203 - CUSTOM HOUSE ALLOWANCES. THE only allowances which are made in the weight of goods, at the Custom-Houses of the United States, are tare, and draft or scalage. Tare is an allowance made for the weight of the box, bag, hogshead, cask, &c. which contains the goods, and it is either at so much per cent, or at so much per box, &c. or the real or actual tare.
Seite 186 - Was four score and sixteen rods, just, and no more ; Now this I'd have you unto me declare — How far they ran before they caught the hare.
Seite 280 - Ans. 73 days. A man, being asked how many sheep he had in his drove, said, if he had as many more, half as many more, and 7 sheep and a half, he should have 20 ; how many had he ? Ans. 5.
Seite 296 - ... the following : — RULE. — Multiply the principal by the rate per cent, and this product by the number of years.

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