First Book of Arithmetic: Uniting Oral and Written Exercises

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American Book Company, 1890 - 168 páginas
 

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Página 129 - When a decimal number is to be divided by 10, 100, 1000, &c., remove the decimal point as many places to the left as there are ciphers in the divisor, and if there be not figures enough in the number, prefix ciphers.
Página 127 - Multiply as in whole numbers, and point off as many decimal places in the product as there are decimal places in the multiplicand and multiplier, supplying the deficiency, if any, by prefixing ciphers.
Página 57 - L, fifty; C, one hundred; D, five hundred ; M, one thousand.
Página 91 - The product of two numbers is 56, and one of the numbers is 7 : what is the other number ? 6.
Página 129 - Divide as in the division of integers, and point off as many decimal places in the quotient as the number of decimal places in the dividend exceeds the number in the divisor.
Página 147 - 31 days. April, 4th " 30 " May, 5th " 31 " June, 6th " 30 " July, 7th mo. 31 days. August, 8th " 31 " September, 9th
Página 149 - Avoirdupois Weight. Avoirdupois weight is used in weighing all articles except gold, silver, and precious stones. TABLE. 16 ounces (oz.) = 1 pound (lb.). 100 pounds = 1 hundredweight (cwt.). 2000 pounds = 1 ton (t.).
Página 106 - Reduce the fractions to a common denominator ; then subtract the numerator of the subtrahend from the numerator of the minuend, and write the result over the common denominator. EXAMPLES. H ,_, Zx . ^ 3x 1. From -^- subtract — . oo . Eeducing to a common denominator, the fractions become Wx 9x "15...
Página 79 - Multiplication is the process of taking one number as many times as there are units in another.
Página 96 - ... thirds in any thing? 8. If a cake be cut into six equal pieces, what part of the cake will one piece be? Two pieces? Three pieces? Four pieces? Five pieces? 9. How many sixths in any thing? 10. Which is the greater, one third or one sixth of a cake? How many sixths equal one third? 11. A single thing is a unit. How many halves in a unit? How many thirds? How many fourths? How many fifths? How many sixths? 12. What is meant by one third? Ans. One third is one of the three equal parts of a unit....

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