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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 Complete Arithmetic, Oral and Written - Σελίδα 223
των Malcolm MacVicar - 1876 - 394 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

The Popular Educator, Τόμοι 1-2;Τόμος 12

1867 - 964 σελίδες
...the 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...

The Elements of Arithmetic

Augustus De Morgan - 1830 - 160 σελίδες
...other 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)...

A New Introduction to the Science of Algebra...

Silas Totten - 1836 - 360 σελίδες
...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 the 6* multiplier. Thus, 23467 x 10 = 234,67, 6,7234 x 100 = 672,34, and 5,71x1000 = 5710. DIVISION...

A Complete System of Commercial Arithmetic, Its Application to the Principal ...

William Tate - 1837 - 358 σελίδες
...cancelling the decimal point in the divisor, and correcting the dividend by removing the decimal point so many places to the right, as there are places in the given divisor.* EXAMPLE 1. To divide £ 3764 by 10, by 100, and by 1000. £ 3.764 0.3764 0.03764 To divide...

A New System of Arithmetic: In which is Explained and Applied to Practical ...

Calvin Tracy - 1840 - 316 σελίδες
....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. ^4»*. 15.6. 14. Multiply 36.541 by 100. Ans. 3654.1....

The principles of arithmetic. [Followed by] The principles of algebra

Wales Christopher Hotson - 1842 - 306 σελίδες
...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...

The Elements of Arithmetic ... in which Decimal and Integral Arithmetic are ...

Pliny Earle Chase - 1844 - 258 σελίδες
...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...

Elements of Arithmetic: For Schools and Academies. In which Decimal and ...

Pliny Earle Chase - 1844 - 246 σελίδες
...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...

A key to the commercial arithmetic

James Morrison (accountant.) - 1845 - 324 σελίδες
...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....

An Elementary Arithmetic ...: Serving as an Introduction to the Higher ...

George Roberts Perkins - 1846 - 266 σελίδες
...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...




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