9. Express in figures:

40. One hundred ten; fifty-four.

41. Two hundred; two hundred twenty.
42. Eighty-four; six hundred seventy.

43. Three hundred sixty-seven; ninety-seven.
44. Four hundred one; eight hundred six.
45. Six hundred forty-seven; two hundred.

46. Nine hundred eighty-three; seven hundred three.
47. Nine hundred four; five hundred nine.

11. To determine the value of a number expressed in figures, two things must be considered: first, how many units each figure represents; and, second, the place of each figure. Thus, in each of the numbers 3, 30, 300, the left-hand figure is three; but in the first it represents three units; in the second, three tens; and in the third, three hundreds.

It is therefore evident that a figure is made to represent units of tenfold value by removing it one place to the left; a hundred fold by removing it two places, etc. The cipher, when used with other figures, fills a place that would otherwise be vacant; thus, in 206 the cipher occupies the place of tens, because there are no tens in the given number.

12. Express in figures:

64. One thousand ten; one thousand five.

65. Two thousand twenty; three thousand seven. 66. Three thousand thirty; seven thousand nine. Five thousand five hundred five.

67.

68. Seven thousand six hundred fifty-four. 69. Nine thousand seven hundred five.

Six hundred sixty thousand six hundred six in figures is

660 606

14. Express in figures:

82. Fourteen thousand sixty-five.

83. Thirty-seven thousand five hundred five.

84. Fifty thousand forty-eight.

85. One hundred fourteen thousand six hundred fifty-five. 86. Three hundred four thousand five hundred forty-two. 87. Seven hundred seven thousand seventy.

88. Nine hundred sixty-nine thousand eight hundred thirtyfour.

15. Figures can also be written on the right of the unit figure. Figures thus written, if separated from the unit figure by a point, are called decimals, and the point is called the decimal point. Thus,

2.4 is 2 units, and 4 tenths,

3.08 is three units, and 8 hundredths,

0.005 is 5 thousandths,

0.023 is 23 thousandths,
0.167 is 167 thousandths,
0.94 is 94 hundredths.

17. Express in figures:

101. Four, and four tenths; five, and two tenths. 102. Fourteen hundredths; sixty-one hundredths. 103. Five hundred thirty-two thousandths.

104. Sixteen, and sixteen thousandths.

105. Eighty, and eight hundredths.

106. Ninety-four, and seventy-five hundredths.

18. The following table shows the method of writ

ing numbers and the names of the places.

For convenience in reading, figures are often separated into periods of three figures, as shown in the

table. The first period on the right of the decimal point contains tenths, hundredths, and thousandths, and is called the thousandths' period; the first period at the left of the decimal point contains units, tens, and hundreds, and is called the units' period; the second period contains thousands, ten thousands, and hundred thousands, and is called the thousands' period; and so on as shown in the table.

NOTE. Where there are no decimal figures the decimal point is usually omitted. To avoid ambiguity in writing in words and in reading a decimal we shall use the conjunction and in such cases only between the unit and the decimal. Thus, 0.203 is not two hundred and three thousandths, but two hundred three thousandths; and 200.003 is two hundred, and three thousandths.

119. Sixty-five.
120. Ninety.

121. Two hundred three, and four tenths.
122. Five hundred seventy, and five hundredths.
123. Nine hundred nine, and nine hundredths.
124. Two thousand, and two thousandths.

125. Five thousand three, and four hundredths.
126. Thirty thousand seven hundred, and five tenths.
127. Three millions two hundred, and nine tenths.
128. Seventy thousand five hundred four, and seven
hundredths.

3 + 2 5
4+ 11

7.9-16

ADDITION.

21. ORAL EXERCISES.

1. John gave me 7 cents and James gave me 12 cents. How many did both give me?

2. I gave to William 8 marbles, to Charles 5, and to Albert 6. How many marbles did I give to the three boys?

3. Mary paid 12 cents for writing-paper, 4 cents for a lead-pencil, and had 8 cents left. How many cents had she at first?

4. Mr. Abbott paid 7 dollars for a pair of boots, and 37 dollars for an overcoat. How much did he pay in all ?

5. A man paid 45 dollars for a stove, and 9 dollars for wood. How much did he pay for both?

6. Paid 7 dollars for a ton of coal, 6 dollars for a barrel of flour, and 5 dollars for a cord of wood. How much did I pay in all?

7. George walked 7 miles Monday, 8 miles Tuesday, 9 miles Wednesday, and 10 miles Thursday. How many miles did he walk in these four days?