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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. "
Davies' University Arithmetic: Embracing the Answers, and a Full Analysis ... - Page 174
by Charles Davies - 1861 - 336 pages
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The Popular Educator, Volumes 1-2; Volume 12

Geography - 1867 - 964 pages
...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 = Vu'jV = 34-567. Similarly,...
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A Course of Mathematics ...: Designed for the Use of the Officers ..., Volume 1

Isaac Dalby - Mathematics - 1807 - 476 pages
...Product 6420-000. Therefore multiplying by 10, 100, 1000, &c. is only removing the decimal point so many places to the right as there are ciphers in the multiplier. Thus S2-1 multiplied by 10 is SJ I ; 4 '4 multiplied by 1000 is 4400, &c. 64. There is a method of...
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Easy Introduction to Mathematics, Volume 1

Charles Butler - Mathematics - 1814 - 540 pages
...multiplier is a whole number, consisting of an unit with ciphers subjoined. RULE. Remove the decimal mark as many places to the right as there are ciphers in the multiplier '. 9. Multiply 123.456Г by 10. Prod. 1234.567. 10. Multiply .98765 by 100. Prod. 98.765. 11. Multiply...
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The Elements of Arithmetic

Augustus De Morgan - Algebra - 1830 - 160 pages
...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 it can....
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Conkling's Arithmetic: The Young Arithmetician's Guide to a Knowledge of ...

Thomas Conkling (W.) - Arithmetic - 1831 - 302 pages
...number equal. NoTE — To multiply decimals by 10, 100, 1000, &c. remove the point in multiplicand so many places to the right, as there are ciphers in the multiplier. EXAMPLE FOR ILLUSTRATION. 1. Multiply 3895.62 by 12.8 Ans. 49863.936 3895.62 I placed the question...
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Treatise on Arithmetic, Practical and Theoretical

Dionysius Lardner - Arithmetic - 1834 - 378 pages
...ciphers, may be immediately converted into a decimal by writing down the numerator alone, and cutting oft' as many places to the right as there are ciphers in the denominator. This follows evidently from what lias been just stated. For example, let the fraction...
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The New System of Practical Arithmetic: Whereby Most of the Various Problems ...

Charles Potts - Arithmetic - 1835 - 202 pages
...ciphers annexed. Remove the decimal point of the multiplicand so many places farther to the right hand as there are ciphers in the multiplier, annexing ciphers if necessary. EXAMPLES. 1. Multiply 51.3 by 1000. Ans. 51300. 2. 7.141 by 100. 3. .1572 by 1000. DIVISION OF DECIMALS. Divide as in whole...
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A New Introduction to the Science of Algebra ...

Silas Totten - Algebra - 1836 - 320 pages
...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 - Arithmetic - 1840 - 326 pages
...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 pages
...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 is removed to the...
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