 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 key to the commercial arithmetic - Page 296by James Morrison (accountant.) - 1845 - 80 pagesFull view - About this book
 | 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,... | |
 | Isaac Dalby - Mathematics - 1807 - 482 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... | |
 | Charles Butler - Mathematics - 1814 - 536 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... | |
 | 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.... | |
 | 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... | |
 | Dionysius Lardner - Arithmetic - 1834 - 380 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... | |
 | 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... | |
 | Calvin Tracy - Arithmetic - 1840 - 326 pages
...cents. 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.... | |
 | 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... | |
 | Pliny Earle Chase - 1844 - 254 pages
...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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