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" To multiply a decimal by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are ciphers in the multiplier ; and if there be not places enough in the number, annex ciphers. "
A Treatise on Surveying: In which the Theory and Practice are Fully ... - Side 195
av Samuel Alsop - 1865 - 428 sider
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The Popular Educator, Volumer 1-2;Volum 12

1867 - 964 sider
...explanations given in Lesson XII., that to multiply a decimal by any power of 10, we need only move the decimal point as many places to the right as there are ciphers in the multiplier. For example : — •31567 x 100 is 31-567. For -34567 x 100 •= AVoVs x 100 =...
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The Elements of Arithmetic

Augustus De Morgan - 1830 - 160 sider
...instances we get the following rule:—To multiply a decimal fraction by a decimal number (106), move the decimal point as many places to the right as there are ciphers in the decimal number. When this cannot be done, add ciphers to the right of the decimal (116) until...
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A New Introduction to the Science of Algebra ...

Silas Totten - 1836 - 320 sider
...5. Multiply 0,000031 by 5,000002. Ans. 0,000155000062. NOTE. — To multiply by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are O's in th< multiplier. Thus, 23467 x 10 = 234,67, 6,7234 X 100 = 672,34, and 5,71x1000 = 5710. DIVISION...
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A New System of Arithmetic: In which is Explained and Applied to Practical ...

Calvin Tracy - 1840 - 326 sider
...Ans. .0625, or 6J cts. Note. — To multiply a decimal by 10, 100, 1000, &c., it is necessary only to remove the decimal point as many places to the right as there are cyphers in the multiplier. 13. Multiply 1.56 by 10. Ans. 15.6. 14. Multiply 36.541 by 100. Ans. 3654.1....
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The principles of arithmetic. [Followed by] The principles of algebra

Wales Christopher Hotson - 1842 - 306 sider
...fractions being The multiplication of a decimal by a number of the form 1000... is performed by removing the decimal point as many places to the right as there are ciphers in the multiplier; for the local values of the figures increase ten -fold for every place the point...
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Elements of Arithmetic: For Schools and Academies. In which Decimal and ...

Pliny Earle Chase - 1844 - 246 sider
...divisor by the quotient, and you will obtain the dividend. To divide any number by 10, 100, 1000, fyc., remove the decimal point as many places to the right as there are zeroes in the divisor. When there are zeroes at the right hand of the divisor, cut them off, and remove...
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The Elements of Arithmetic ... in which Decimal and Integral Arithmetic are ...

Pliny Earle Chase - 1844 - 258 sider
...the other factor. The product by zero is always zero. To multiply any number by 10, 100, 1000, &c., remove the decimal point as many places to the right, as there are zeroes in the multiplier. When there are zeroes at the right hand of either, or both factors, perform...
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A key to the commercial arithmetic

James Morrison (accountant.) - 1845 - 324 sider
...multiplicand for it. (6.) Q. How do you multiply by 10, 100, 1000, or the like ? A. I have only to remove the decimal point as many places to the right as there are ciphers in the multiplier, annexing ciphers, if necessary, to make up the number of places. (7.) Q. How do...
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A New System of Arithmetic: In which is Explained and Applied to Practical ...

Calvin Tracy - 1845 - 298 sider
...Ans. .0625, or 6£ cts. NOTE. — To multiply a decimal by 10, 100, 1000, &c., it is necessary only to remove the decimal point as many places to the right as there are ciphers in the multiplier. 13. Multiply 1.56 by 10. Ans. 15.6. 14. Multiply 36.541 by 100. Ans. 3654.1. 15....
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An Elementary Arithmetic ...: Serving as an Introduction to the Higher ...

George Roberts Perkins - 1846 - 266 sider
...125.125 by 5.5. Ans. 688.1875. 36. A decimal number maybe multiplied by 10, 100, 1000, &c., by removing the decimal point as many places to the right as there are ciphers in the multiplier ; and if there are not so many figures, make up the deficiency by annexing ciphers....
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