Synopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...in division. COMMON FRACTIONS Note. Review pp. 28 to 80. Encourage the children to establish a class standard as suggested on p. 150. DECIMALS Any unit may be divided into lOths, lOOths, lOOOths, etc. Any number of tenths, hundredths, thousandths, etc., of a unit is called a decimal fraction. When expressed with a decimal point, without a written denominator, it is usually called a decimal. Thus, T'j and.5, yfo and.05, y and.005, are decimal fractions, but the term decimal is usually restricted to the forms-5,.05,.005,.0005, etc. Express decimally: 1 & ihs Tcvo mrkwG 4. In 5.55, the figure in tenths' place equals how many times the figure in hundredths' place? The figure in ones' place equals how many times the figure in tenths' place? A decimal point is used to separate units from parts of units. It is always placed at the right of ones' place and before tenths' place. 5. What is the first place to the right of a decimal point called? the second place? the third place? 6. What is the largest decimal division of any unit? the second largest? the third largest? In any decimal or whole number, 10 units of any place = 1 unit of the next place to the left. Show that United States money is a decimal system. NOTATION AND NUMERATION OF DECIMALS 1. Express decimally ft,-ffo, y, 1$fo, T, T$jfo. The names of the decimal places most frequently used are given in the following table: The number is read "nine thousand five and ninety-seven thousand four hundred eighty-nine millionths." Notice that the word and is read only between the whole number and the decimal. 2. How many places to the right of the decimal point are tenths written? hundredths? thousandths? tenAhousandthst hundred-thousandths? millionths? Read: 3..25 6..375 9..4045 12..678705 4..05 7..10...
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