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" It is evident from what we have seen in adding and subtracting decimals, that in this case there must be as many decimal places in the product, as there are in the multiplicand. It may perhaps be more satisfactory if we analyze it. "
Arithmetic: Being a Sequel to First Lessons in Arithmetic - Σελίδα 213
των Warren Colburn - 1824 - 267 σελίδες
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Elementary Arithmetic, Oral and Written

William Guy Peck - 1878 - 232 σελίδες
...Since tenths multiplied by hundredths give thousandths, .5 x .09 = .045. PRINCIPLE. — There will be as many decimal places in the product as there are in the factors. RULE. Multiply as in integers, and point off from the right of the product, as many decimal...

Bradbury's Eaton's Practical Arithmetic: Combining Oral and Written Exercises

William Frothingham Bradbury - 1879 - 374 σελίδες
...under tlie figure of the m/ultiplier which produces it. 3. Add these partial products and point off as many decimal places in the product as there are in the multiplicand, and the result will be the true product. 62. PBOOF. Multiply the multiplier by the multiplicand, and,...

Second Book in Arithmetic: Comprising Four Years of Oral and Written Work in ...

1882 - 380 σελίδες
...136. The methods of written work in multiplication of decimals are based upon the following PRINCIPLE. There must be as many decimal places in the product as there are in both factors. Ex. 1. The factors are .24 and 39. What is the product? EXPLANATION.—I write the FIRST...

Complete Arithmetic Combining Oral and Written Exercises

Indiana. State Board of Education - 1886 - 352 σελίδες
...-08928. ART. 177.—Rule for Multiplication of Decimals.—Multiply as in whole numbers, and point off as many decimal places in the product as there are in the multiplicand and multiplier. In case there are not the required number of decimal places in the product, prefix...

Standard Elementary Arithmetic: Combining Oral and Written Exercises

Edward Sylvester Ellis - 1886 - 192 σελίδες
...-nfi&W = -00255. Rule for Multiplication of Decimals.—Multiply as in whole numbers, and point off as many decimal places in the product as there are in the multiplicand and multiplier. In case there are not the required number of decimal places in the product, prefix...

Advanced Arithmetic for Secondary Schools: A Comprehensive Treatise on the ...

John Homer French - 1889 - 474 σελίδες
...number of decimal places in the product equals the number of decimal places in the other factor. 5. There must be as many decimal places in the product as there are in the factors. IV. PRINCIPLES OF FRACTIONS. — 1. Multiplying the numerator or dividing the denominator...

Elementary Arithmetic: Combining Oral and Written Exercises

Edward Sylvester Ellis - 1889 - 192 σελίδες
...thus : .00255 Bnle for Multiplication of Decimals. — Multiply as in whole numbers, and point off as many decimal places in the product as there are in the multiplicand and multiplier. In case there are not the required number of decimal places in the product, prefix...

The New Model Arithmetic

Henry Holmes Belfield - 1891 - 346 σελίδες
...7983 by 800 ; by 600 ; by 500. 8. Multiply 82.5 by 3. When the multiplier is an integer, there are as many decimal places in the product as there are in the multiplicand. 9. Multiply $36.25 by 3 ; by 7 ; by 8. 96. 1. Multiply 738 by 146. PROCESS. ANALYSIS. 146=100+40 738...

The Essentials of Arithmetic, Oral and Written, Βιβλίο 1

Gordon Augustus Southworth - 1893 - 205 σελίδες
...0.12? Process. T*ff of T% = т*Д. = 0.24. Process. T6ff XЛ^ = Тй?^ = 0.072. Remark. There will be as many decimal places in the product as there are in both factors. 5. 0.5 of 40 8.0.3x0.09 11. 3% of 900 14.0.7x0.90 6. 5% of 300 9.0.7x0.8 12. 20% of 500...

The Indiana School Journal, Τόμος 38

1893
...are too apt to commit the words of a rule without comprehending their meaning. 2. There should always be as many decimal places in the product as there are in both multiplier and multiplicand, because the denominator of the product contains as many ciphers as...




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