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" Multiply as in whole numbers, and point off as many decimal places in the product as there are decimal places in the multiplicand and multiplier, supplying the deficiency, if any, by prefixing ciphers. "
A Complete Arithmetic: Uniting Mental and Written Exercises in a Natural ... - Σελίδα 85
των Emerson Elbridge White - 1870 - 340 σελίδες
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Beginners' Algebra, Βιβλίο 1

Clarence Elmer Comstock, Mabel Sykes - 1922 - 320 σελίδες
...100 3000 .1 .02 10 3.42 47.34 .354 906 1000 200 300 A 13. Multiplication. RULE. Multiply as if with integers and point off as many decimal places in the product as there are in both numbers that are to be multiplied together. 32.7 2.43 981 1308 654 79.461 The following rule...

Fundamentals of Practical Mathematics

George Wentworth, David Eugene Smith, Herbert Druery Harper - 1922 - 214 σελίδες
...cannot be found accurately beyond 0.1". Therefore we write the result as 35.8". Beginning at the right, point off as many decimal places in the product as there are in the two numbers together. Exercises. Multiplication of Decimals 1. Find the dimensions corresponding...

The Pilot Arithmetics, Τόμος 2

1923 - 364 σελίδες
...HUNDREDTHS BY INTEGERS To multiply a decimal number by an integer, multiply as with ordinary numbers and point off as many decimal places in the product as there are in the given decimal number. 20. One side of a square lot is 75.6 ft. What is the distance around the...

A Course in Arithmetic for Teachers and Teacher-training Classes

James Robert Overman - 1923 - 396 σελίδες
...common fractions in the following way. To multiply a decimal by an integer, multiply as in whole numbers and point off as many decimal places in the product as there are in the multiplicand. A second method of deriving this rule makes use of the pupil's knowledge of concrete...

Arithmetic: Grades 1,2,3,4,5 and 6, Elementary School

Denver Public Schools - 1924 - 242 σελίδες
...1.6X2.45 is not 392 sq. mi.? Learn this rule: Multiply with decimals just as with whole numbers. Then point off as many decimal places in the product as there are in the multiplier and multiplicand together. P. Practical problems with decimals2 1. Water comprises...

Rural School Methods

Elmer L. Ritter, Alta L. Wilmarth - 1925 - 474 σελίδες
...decimals that perhaps is most widely used is contained in the words: "Multiply as in whole numbers and point off as many decimal places in the product as there are in both multiplier and multiplicand." Examples: .6X.8=-48; 1.2X1.2 = 1.44, etc. This method requires...

Arithmetic of Pharmacy

Alviso Burdett Stevens - 1926 - 184 σελίδες
...of this, how much will remain? 14. Multiplication of Decimal Fractions Proceed as in whole numbers, and point off as many decimal places in the product as there are decimal places in the multiplier and multiplicand. 45. Example. Multiply 3.52 by 0.86. 3.535 .86 21150 28200 3.03150...

The Iroquois Arithmetics: For School and Life, Βιβλίο 2

Harry De Witt De Groat, Sidney Grant Firman, William A. Smith - 1926 - 360 σελίδες
...Multiply a Decimal by a Decimal Qfi ^ V 4 y> — ^ n mu ltiplying decimals, point off ' from the right as many decimal places in the product as there are decimal places in both the multiplicand and the multiplier. After you have pointed off the right number of decimal places,...

Preparatory Mathematics for the Building Trades

Harold B. Ray, Arnold V. Doub, Oka Frank Carpenter - 1927 - 88 σελίδες
...Multiply 1003.21 by .064. 1003.21 X.064 401284 601926 64.20544 Rule. — Multiply as in whole numbers and point off as many decimal places in the product as there are in the factors taken together EXERCISE 13 1. Add 3.985, 4.06, 98.4763, .0356, and 100.728. 2. Add 13.8505,...

A Study of the Errors Made by Sixth- Seventh- and Eighth-grade Pupils in ...

Robert Timothy McGrath - 1927 - 118 σελίδες
...Summary 197 167 134 498 99.7 99.7 this problem: (1Ï To multiply decimals, multiply as in integers; (2) point off as many decimal places in the product as there are in both nraltipller and multiplicand. The analysis shows that 28,8 per cent of the pupils whose answers...




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