The North American Arithmetic: Part Second, Uniting Oral and Written Exercises in Corresponding Chapters

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Hogan and Thompson, 1835 - 191 páginas
 

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Página 157 - To reduce a mixed number to an improper fraction. Multiply the whole number by the denominator of the fraction, and to the product add the given numerator.
Página 171 - 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.
Página 185 - Multiply as in whole numbers, and from the right hand of the product point off as many figures for decimals as there are decimal places in both factors.
Página 119 - ... given number into as many equal parts, as there are units in another given number. Questions to be answered Orally. . (1) How many kinds of operations are practised ! on numbers? (2) What are they called? (3) What
Página 139 - Jldd the numbers of the lowest denomination together, and divide their sum by that number which is required of this denomination to make 1 of the next higher: write the remainder under the column added, and carry the quotient to the next column.
Página 185 - RULE. Divide as in whole numbers, and from the right hand of the quotient point off as many places for decimals as the decimal places in the dividend exceed those in the divisor.
Página 108 - ... means 3 hundred; and the 1 which we place under it means 1 hundred, showing that 3 is contained in 300, 100 times. The 9 means 9 tens, and the 3 which we place under it means 3 tens, showing, that 3 is contained in 90, 30 times. A Dividend is a number which is to be divided; such is the number 396 in the above example.
Página 170 - Divide the greater number by the smaller, then divide the divisor by the remainder; and thus continue dividing the last divisor by the last remainder, till nothing remains. The divisor used last of all, will be the greatest common divisor.
Página 185 - decimal places in the dividend. If there be not figures enough in the quotient to point off, prefix ciphers to supply the deficiency.
Página 121 - What sum did they find? 11. If a trader buy 558 barrels of flour at 5 dollars a barrel, and pay 14 dollars for storage, for how much must he sell the flour, to gain 160 dollars? 12. Suppose 5 bushels of wheat to make a barrel of flour, how many barrels of flour can be made from 12 bins of wheat, each bin containing 95 bushels?

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