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55. Add 6.24, 2.8, 7.364, 4.69, and 31.485.
56. Add 23, 432, 4869, 87246, and 42867.
57. Add 3, 8.642, 7.9, 268.4, 894.72, and 8030.
58. Add 43, 78, 438, 7432, 2964, and 94216.
59. Add 435.075, 21.007, 0.035, and 2000.02.
60. Add 7.06, 18.2, 4.17, 0.006, and 13.
61. Add 134.008, 2.1, 144.35, and 147.

NOTE 2. In United States money the dollar is the unit, and as 100 cents make a dollar, and 10 mills a cent, cents occupy two decimal places, tenths and hundredths, and mills one place, thousandths. Thus, $ 42.255 is 42 dollars and twenty-five hundredths of a dollar and five thousandths of a dollar, or 42 dollars 25 cents and 5 mills.

62. Add $ 26.37, $137.55, $ 215.445, and $ 0.155.

63. What is the sum of 8432, 42698, 34, 1892, 70068, 5142, and 68742 ?

64. What is the sum of $ 24.68, $ 135.79, $ 3.76, and $ 42.55?

65. What is the sum of 34.06, 87.2, 6.541, 2, and 1.7 ? . 66. What is the sum of 3910, 4, 876, 27, and 89462? (67.) (68.) (69.)

(70.) 10500 42040 53211 $ 13.110 61081 34446 50002 62.222 28003 30409

10050

66.626 13294 90000 55555

55.555 82183 90005 45544 33.333

71. How many are 687 +2987 + 42698 + 7070 ?
72. How many are 936.04 + 61.2 + 49.82 + 7.4
73. How many are 18+4+76984 + 327 +14?
74. 927 + 468 + 300 + 48=?
75. 846.2 + 7.679 + 7.28 + 28.437=?
76. 3004 + 4906 + 76842 + 36 = ?
77. 4682 + 19735 + 100+ 6402 + 178 +19=?

78. Add four hundred sixty-two; three thousand two hundred fourteen ; seventy-nine thousand six hundred fifty-nine; and two hundred eighty-four.

79. Add five hundred and decimal six thousandths; fortyfive thousandths ; eighty-four million and decimal twelve hundredths; and decimal thirty-five thousandths.

80. What is the sum of one thousand two hundred, and one hundred forty-four thousandths; two hundred five, and sixteen thousandths; and eight hundred forty-nine, and six hundredths ?

81. What is the sum of fifty, and five thousandths; four hundred, and four hundredths; and seventy, and seventeen thousandths ?

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In Ex. 82 we write the sum of the units of each column in its proper place beneath, and then add these sums. In adding long columns this is an excellent way. It often saves adding a column a second or third time after interruption, or to find how much belongs to the next left-hand column.

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83. Add 4670, fourteen thousand five, six million seven hundred four, 87637, 76504, fifteen thousand ten, seven hundred thousand four hundred one, and 237.

84. A man bought a horse for $ 250, a carriage for $175, a harness for $ 74.50, a whip for $1.25, a carriage blanket for $ 3.45. What did he pay for all ?

85. If I pay $ 33.50 for a coat, $ 8.50 for a pair of pantaloons, $5.35 for a vest, $ 3.75 for a hat, $ 4 for a pair of boots, and $6.85 for other articles, what do I pay for all ?

86. In building a house, the digging of the cellar cost $ 67 ; the stone and the laying of it for the cellar, $403; the granite trimming at the base of the house, $ 172 ; the brick and masons' work, $ 2257; the stone trimmings, $ 306 ; the window-frames, $157; the windows, $ 196; the door-frames, $ 98 ; the doors, $175 ; the lumber for frame, etc., $ 603; the carpenters' work, $ 1757 ; sundry other expenses, plumbing, furnace, gas-pipes, slating, etc., $ 1417: find the cost of the house.

87. If the population of North America is 59210100; of South America, 26309700 ; of Europe, 309178300; of Asia, 824548500 ; of Africa, 199921600; and of Australia, 4748600, - what is the population of the globe ?

88. The cost of the American army for five successive years, commencing in 1812, was $ 12187046, $ 19906362, $ 20608366, $ 15394700, and $ 16475412; what was the cost for five years ?

89. B owes to C $ 150, to D $ 4682, to E $ 267, to F $54, and to G $ 1353; how much does he owe?

90. Add four hundred, and fifty-six hundredths; eight thousand four hundred, and seventy-two thousandths; fifteen thousand seven hundred, and twenty-one hundredths; forty-three million seven hundred thirty-three thousand eight hundred, and fifty-nine thousandths; and ten.

91. A merchant commencing business had in cash, $ 4376.75; goods worth $ 3780.37; bank stock worth $ 2700; and other property valued at $ 5496.55. In a year he gained $ 2475.17 ; what was he worth at the end of the year?

92. In one year a farmer sold a pair of oxen for $ 125.83, two cows for $ 75.47, three swine for $ 96.75, twenty sheep for $ 120, and a horse for $ 156; what did he receive for all ?

93. On Monday a merchant sold goods for $ 357.15, on Tuesday for $463.87, on Wednesday for $ 279.19, on Thursday for $318.67, on Friday for $687.27, and on Saturday for $ 348.48; what was the value of the goods sold during the week?

94. A man dying left by his will, to his widow $ 3784, to his only son $ 2578, to the elder of his two daughters $ 2100, to the younger $ 1700, and for charitable objects the balance of his estate, $ 315. Find the value of the man's property.

95. The area of Maine is 35000 square miles ; New Hampshire, 9280; Vermont, 10212; Massachusetts, 7800; Rhode Island, 1306 ; Connecticut, 4750. What is the area of New England ?

96. England and Wales contain about 58000 square miles ; Scotland, 30000; and Ireland, 33000 : what is the area of the British Islands ?

97. In 1870 the population of Maine was 626915; of New

Hampshire, 318300; of Vermont, 330551 ; of Massachusetts, 1457351 ; of Connecticut, 537454; of Rhode Island, 217353. What was the population of these six States in 1870 ?

98. According to the latest authorities, the population of the following cities in even thousands is, London, 3489000; Paris, 1825000; Pekin, 2500000; Canton, 1250000; Vienna, 1002000; New York, 943000; Yedo, 789000. What is the population of these seven cities together ?

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107. In January there are 31 days, in February 28, in March 31, in April 30, in May 31, in June 30, in July 31, in August 31, in September 30, in October 31, in November 30, and in December 31 ; how many days are there in a year ?

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