1. If a book costs $1 and you pay with a $1 coin, how much change do you get?
Answer: $0

2. If a book costs $1 and is half-price today, how much will you pay?
Answer: $0.50

3. Buy four books at $1 each — how much in total?
Answer: $4

4. Two books cost $1 each; one is free with the other — how many books for $1?
Answer: 2

5. A book costs $1, a bookmark costs $0.10; what’s the combined price?
Answer: $1.10

6. If tax is $0.05 on a $1 book, what’s the total?
Answer: $1.05

7. You have $2 and buy one $1 book — how much remains?
Answer: $1

8. A friend gives you a coupon “$1 off one book” and the book costs $1 — what do you pay?
Answer: $0

9. A book is $1; a second identical book is 50% off — how much for two?
Answer: $1.50

10. If three books are on sale “3 for $2”, how much is each on average?
Answer: $0.666… (two-thirds of a dollar)

11. A book costs $1 and shipping is $0.25 — total cost?
Answer: $1.25

12. You find a $1 book and a $0.25 coupon; how much do you pay?
Answer: $0.75

13. If you trade 4 stickers for a $1 book, what’s one sticker worth?
Answer: $0.25

14. A book costs $1 and the store offers “buy 2, get 1 free” — how many books for $2?
Answer: 3

15. A used book costs $1 but you have a $0.20 loyalty credit — what’s the net pay?
Answer: $0.80

16. If you pay $1 with coins of $0.25 only, how many quarters do you hand over?
Answer: 4

17. A book costs $1 and the cashier gives you $0.01 extra change — what did you receive?
Answer: A penny too many

18. A book costs $1. A tax of 8% applies — approximately what’s the total?
Answer: $1.08

19. If you split $1 evenly among 5 friends, how much does each get?
Answer: $0.20

20. A book costs $1 but you pay with a $5 note — how much change should you get?
Answer: $4

21. A store sells a book at $1 and then reduces price by $0.10 every day for 5 days — what’s the price on day 5?
Answer: $0.50

22. If a book costs $1 and you buy 10 books, what’s the total?
Answer: $10

23. The book costs $1. Two friends share one book equally — how much does each pay?
Answer: $0.50

24. A book costs $1. If you return it and get a full refund, how much do you get back?
Answer: $1

25. A book costs $1; pennies only are accepted — how many pennies?
Answer: 100

26. If a $1 book’s price is raised by 25%, what is the new price?
Answer: $1.25

27. A book costs $1. If you owe $3 but pay with three $1 books instead of money, how many books did you trade?
Answer: 3

28. You buy a $1 book and leave a 10% tip — how much tip did you leave?
Answer: $0.10

29. A book costs $1 and you buy 7; what’s the average cost per book if one is free?
Answer: $0.857142… (6 paid books /7)

30. A bargain: 5 books for $3 — how much saved per book versus $1 each?
Answer: $0.40 saved per book

31. A book costs $1 in dollars and €1 in euros; which currency bought more if $1 = €0.90?
Answer: The euro (since €1 is equivalent to more dollars in this rate)

32. A book costs $1; a store rounds to nearest 5¢ — what price might you actually pay?
Answer: $1.00 (already a multiple of 5¢)

33. If a book costs $1 and you pay with a $2 coin, how many $0.10 coins can you get as change?
Answer: 10 dimes (if change is $1)

34. A book costs $1; a membership gives 20% off — what’s the price for members?
Answer: $0.80

35. If each book costs $1 and you get 12 for $10, how much did you save total?
Answer: $2

36. A book costs $1 and gift-wrap costs $0.40; total cost?
Answer: $1.40

37. You have $1.50 and buy a $1 book, then buy a $0.25 snack — how much remains?
Answer: $0.25

38. A book costs $1; the store gives buy-one-get-second-for-$0.20 — how much for two?
Answer: $1.20

39. A book costs $1 and a downloadable version is free — what’s the free item called?
Answer: Ebook

40. If 3 books are $1 each, and a 10% bulk discount applies to the total, what’s the final total?
Answer: $2.70

41. A book costs $1 and a coupon says “25¢ off when you buy two” — how much for two with coupon?
Answer: $1.75

42. If the $1 book is translated and sold for $1.50 abroad, what’s the markup?
Answer: $0.50

43. A book costs $1. You pay with two 50¢ coins — how many coins did you use?
Answer: 2

44. A book costs $1; you get a $0.10 sticker discount and then pay with exact change — how much cash leaves your hand?
Answer: $0.90

45. If an author gives you a $1 signed copy as a gift, what did you pay?
Answer: $0 (it’s free to you)

46. A book costs $1 but is donated to a library — what’s the book’s new price to readers?
Answer: Free (to borrow)

47. You buy one $1 book and the cashier mistakenly rings $0.10 — how much less did you pay?
Answer: $0.90 less than $1 (i.e., you paid $0.10)

48. A book costs $1 and you receive a $0.05 loyalty stamp; how many stamps for a free book if 20 stamps needed?
Answer: 20

49. A $1 book is split into 2 chapters sold separately — what’s the cost per chapter if split evenly?
Answer: $0.50

50. A shop sells book #1 for $1 and book #2 for $2 — how much for both?
Answer: $3

51. A book costs $1. If the store charges a 9% sales tax on the dollar, how many cents is the tax?
Answer: 9 cents

52. A book costs $1 and you buy half a dozen — how much total?
Answer: $6

53. A book is $1; you borrow it from a friend — how much did you pay?
Answer: $0 (you borrowed it)

54. If the book costs $1 and a bookmark costs $0.02, how many bookmarks can you buy with $1?
Answer: 50

55. A book costs $1 and the store rounds every total up to the nearest dollar — what do you pay if you buy nothing else?
Answer: $1

56. If a book costs $1 and the price doubles every year, what’s the price after one year?
Answer: $2

57. A book costs $1 and you return it within the exchange period for store credit — what form of value do you get?
Answer: Store credit

58. A book costs $1; you split payment with a friend who pays $0.30 — how much do you pay?
Answer: $0.70

59. A book costs $1 and has 100 pages — what’s the cost per page?
Answer: $0.01 per page

60. A book costs $1 and is sold with a 10¢ sticker tax — what common coin pays the sticker tax?
Answer: Dime

61. If a book costs $1 and shipping is free, what extra fee did you avoid?
Answer: Shipping fee

62. A book costs $1; the store accepts barter and you give two apples instead — what did you pay in cash?
Answer: $0

63. If a book costs $1 and you donate $0.25 to charity with purchase, how much is the book portion?
Answer: $0.75

64. A book costs $1. You buy one and win another free — how many books do you leave with?
Answer: 2

65. A book costs $1. If you get a refund of $0.40 after returning half of your order, how much was your original payment for two books?
Answer: $2 (two books at $1 each)

66. If a book costs $1 plus a $0.03 environmental fee, what’s the total?
Answer: $1.03

67. A book costs $1; you save for 10 days putting aside $0.10 per day — can you buy it?
Answer: Yes

68. If a book costs $1 and you use a $1 gift card, how much cash do you spend?
Answer: $0

69. A book costs $1 and a sale states “25% off when you buy 4 or more”; what’s the price per book if you buy 4?
Answer: $0.75 ($1 − 25%)

70. If a book costs $1 and you get a punched loyalty card requiring 5 punches per free book, how many books must you buy to fill one card if each purchase = 1 punch?
Answer: 5

71. A book costs $1. You find the same title secondhand for $0.40 — how much cheaper is that?
Answer: $0.60

72. A book costs $1 and a reading light costs $0.50 — how much for both?
Answer: $1.50

73. If a book costs $1 and you zip to the store using $0.25 in gas, what’s your total outlay?
Answer: $1.25

74. A book costs $1; the library charges $0.10 overdue per day — how much after 5 days late?
Answer: $0.50

75. A book costs $1. If you sell it later for $0.30, what’s your loss?
Answer: $0.70

76. A book costs $1 and the vendor accepts only nickels — how many nickels do you need?
Answer: 20

77. A book costs $1 and is part of a bundle “10 books for $8” — what’s the average price per book in the bundle?
Answer: $0.80

78. If a book costs $1 and the store applies a $0.07 coin rounding up, what would you pay?
Answer: $1.07

79. A book costs $1 and an audiobook costs $4; how much more is the audiobook?
Answer: $3

80. If a book costs $1 and you split the price among 25 people, how much does each person pay?
Answer: $0.04

81. A book costs $1; the publisher gives the author $0.30 royalty — how much remains for production and store margin?
Answer: $0.70

82. A book costs $1 and you want 3 copies but only have $2 — how many can you buy?
Answer: 2

83. A book costs $1 and its digital edition is $0.25; how much cheaper is the ebook?
Answer: $0.75

84. A book costs $1; a clearance sticker slashes price to $0.15 — what is the percent discount?
Answer: 85%

85. If a book costs $1 and you find a mint copy valued at $10, what’s the collector premium?
Answer: $9

86. A book costs $1 and is sold with a 2-for-1 weekend deal — what’s the effective price per book?
Answer: $0.50

87. A book costs $1; you buy 100 books to donate — how much did the purchase cost?
Answer: $100

88. If a book costs $1 and a sales tax rebate returns $0.06, what was approximate tax rate if tax was $0.06?
Answer: 6%

89. A book costs $1. If you pay with a $0.50 and a $0.25 coin, what’s missing?
Answer: $0.25

90. A book costs $1 and you buy it with 3 dimes and 7 nickels — how much did you pay in dollars?
Answer: $0.85

91. A book costs $1; your friend lends you $0.40 — how much more do you need?
Answer: $0.60

92. A book costs $1 and you trade it for a sandwich worth $1.25 — what’s the trade difference?
Answer: $0.25 (you gained $0.25 value)

93. If a book costs $1 and you get 10% cashback, what do you get back?
Answer: $0.10

94. A book costs $1. If the store charges 3% processing fee on cards, how many cents is the fee?
Answer: 3 cents

95. A book costs $1 and you find a $0.20 misprint discount — what’s the price now?
Answer: $0.80

96. If a book costs $1 and you buy 9 at that price, what’s the subtotal?
Answer: $9

97. A book costs $1 and the bookstore gives you a $0.50 store credit for any return — what net did you effectively spend if you return it immediately?
Answer: $0.50

98. A book costs $1. If shipping to three countries adds $0.33 each, how much extra in total?
Answer: $0.99

99. A $1 book is sold in change only and you have two quarters, a dime, and a nickel — how much do you have?
Answer: $0.65

100. If a book costs $1 and you earn $0.10 each time you recommend it to a friend, how many recommendations to buy one?
Answer: 10