Fundamentals of Mathematics, 2008a

20 CHAPTER 1. ADDITION AND SUBTRACTION OF WHOLE NUMBERS
Exercise 1.3.33
In 1979, the amount of money spent in the United States for regular-session college education was
$50,721,000,000,000.
Exercise 1.3.34 (Solution on p. 77.)
In 1981, there were 1,956,000 students majoring in business in U.S. colleges.
Exercise 1.3.35
In 1980, the average fee for initial and follow up visits to a medical doctors oce was about $34.
Exercise 1.3.36 (Solution on p. 77.)
In 1980, there were approximately 13,100 smugglers of aliens apprehended by the Immigration
border patrol.
Exercise 1.3.37
In 1980, the state of West Virginia pumped 2,000,000 barrels of crude oil, whereas Texas pumped
975,000,000 barrels.
Exercise 1.3.38 (Solution on p. 77.)
The 1981 population of Uganda was 12,630,000 people.
Exercise 1.3.39
In 1981, the average monthly salary oered to a person with a Master's degree in mathematics
was $1,685.
For the following problems, write each number using digits.
Exercise 1.3.40 (Solution on p. 77.)
Six hundred eighty-one
Exercise 1.3.41
Four hundred ninety
Exercise 1.3.42 (Solution on p. 77.)
Seven thousand, two hundred one
Exercise 1.3.43
Nineteen thousand, sixty-ve
Exercise 1.3.44 (Solution on p. 77.)
Five hundred twelve thousand, three
Exercise 1.3.45
Two million, one hundred thirty-three thousand, eight hundred fty-nine
Exercise 1.3.46 (Solution on p. 77.)
Thirty-ve million, seven thousand, one hundred one
Exercise 1.3.47
One hundred million, one thousand
Exercise 1.3.48 (Solution on p. 77.)
Sixteen billion, fty-nine thousand, four
Exercise 1.3.49
Nine hundred twenty billion, four hundred seventeen million, twenty-one thousand
Exercise 1.3.50 (Solution on p. 78.)
Twenty-three billion
Exercise 1.3.51
Fifteen trillion, four billion, nineteen thousand, three hundred ve
Exercise 1.3.52 (Solution on p. 78.)
One hundred trillion, one
Available for free at Connexions