09 NEL MATH CH01 Multiple Choice Identify the choice that best completes the statement or answers the question. ____ ____ ____ ____ ____ 1. A flight is scheduled to be part of the flight scheduled? a. hours c. b. d. hours 2. Evaluate the expression c. b. d. 3. Jamal spent hours on his homework and hours hours hours reading a book. How much more time did Jamal spend reading his book than doing his homework? a. hours c. b. d. hours 4. Mr. Lewis is cutting a board that is hours hours inches long. After his cut, the larger piece is length of the smaller piece? a. inches c. b. d. inches hours. For how long is the second . a. inches. What is the inches inches 5. Zach left for the movies at 6:30 p.m. He returned at 10:15 p.m. How long was Zach away? a. c. hours hours b. ____ hours long. There will be one stop after hours d. hours 6. Which two mixed numbers have a sum of 5 and a difference of a. b. and and c. d. and and ? ____ 7. A recipe for fruit punch calls for cups of orange juice, juice. How many cups of juice are used in the recipe? a. c. cups b. ____ d. cups 8. Which sum will be a whole number? a. b. ____ cups of grape juice, and cups of apple cups cups c. d. 9. Aaron worked hours Thursday and hours Friday. He worked hours Saturday. How many more hours did Aaron work Saturday than Thursday and Friday combined? a. c. 3 hours hours b. d. hours ____ 10. What is the difference of hours ? a. c. b. d. ____ 11. Calculate the product. . a. c. b. d. ____ 12. Calculate the quotient. a. c. b. d. ____ 13. Ramona’s bedroom is rectangular. It is bedroom? a. sq m metres long and c. sq m metres wide. What is the area of Ramona’s b. d. sq m sq m ____ 14. Which best describes what happens when a mixed number is divided by a fraction less than 1? a. The quotient is greater than the dividend and the divisor. b. The quotient is greater than the dividend but less than the divisor. c. The quotient is greater than the divisor but less than the dividend. d. The quotient is less than the divisor and dividend. ____ 15. Tanya ran kilometres around an oval park. Each lap of the park is Tanya run? a. c. b. d. kilometres. How many laps did ____ 16. Which best describes the product when a mixed number is multiplied by a fraction less than 1? a. The product is a fraction less than 1. b. The product is greater than the fraction but less than the mixed number. c. The product is greater than the fraction and the mixed number. d. The product is a mixed number. ____ 17. A cube has edges of inches. What is the volume of the cube? a. c. b. d. ____ 18. What number makes this equation true? a. c. b. d. ____ 19. Calculate the product. a. c. b. d. 26 ____ 20. Which expression will result in a quotient less than 1? a. c. b. d. ____ 21. Evaluate the expression when x = –5 and y = 4. a. –141 b. –109 c. 109 d. 141 ____ 22. Which evaluation will result in a positive integer? a. c. b. d. ____ 23. Evaluate the expression. a. –144 b. –36 c. 36 d. 144 ____ 24. Evaluate the expression. a. –19 b. –1 c. 1 d. 5 ____ 25. Evaluate the expression when x = –4 and y = –2. a. –2048 b. –256 c. 256 d. 2048 ____ 26. Which expression will result in a positive integer? a. c. b. d. ____ 27. If a is a positive integer, which best describes the evaluation of a. b. c. d. ? The evaluation will be a negative integer. The evaluation will be 0. The evaluation will be a positive integer. The evaluation can be either positive or negative. ____ 28. Which value makes the equation true? a. –6 b. –4 c. 4 d. 6 ____ 29. Assume c is a negative integer. Which best describes the difference of a. The difference is negative. b. The difference is 0. c. The difference is positive. d. The difference can be negative or positive. ____ 30. Evaluate the expression. ? a. –3 b. –1 c. 1 d. 3 ____ 31. Of which set does 0 not belong? a. natural numbers b. whole numbers ____ 32. Rename c. integers d. rational numbers as a decimal. a. 0.375 b. 0.38 ____ 33. How can a. c. 0.4125 d. 0.425 be written as a fraction? c. b. d. ____ 34. Which fraction is greater than , but less than ? a. c. b. d. ____ 35. Which statement is true? a. –5 < –3 b. –2.3 > –2.15 ____ 36. To which set of numbers does –2.75 belong? a. natural numbers b. whole numbers ____ 37. How can a. –11 ÷ 3 b. –3 ÷ 11 c. d. –3.21 > -3.2 c. integers d. rational numbers be written as the quotient of two integers? c. –11 ÷ –3 d. –3 ÷ –11 ____ 38. A basketball team has won 0.625 of its games. If the team has played 24 games, how many games has the team won? a. 14 c. 16 b. 15 d. 18 ____ 39. Which sentence is true? a. All whole numbers are also natural numbers. b. All integers are also rational numbers. c. All rational numbers are also integers. d. All integers are also whole numbers. ____ 40. How can you write as a decimal? a. – b. –0.583 c. – d. – ____ 41. Calculate the expression. a. c. b. d. ____ 42. When multiply two numbers, which of the following will result in a negative product? a. if both factors are negative b. if one factor is negative and the other is 0 c. if both factors are positive d. if one factor is negative and the other is positive ____ 43. The temperature outside is –10 °F. What is the temperature in degrees Celsius? Use the formula to convert to degrees Celsius. a. –75.2 °C c. b. d. °C °C °C ____ 44. Evaluate the expression. a. c. b. d. ____ 45. Which will result in a negative quotient? a. if the dividend is greater than the divisor b. if the divisor is greater than the dividend c. if the dividend and divisor have different signs d. if the dividend and divisor are both negative ____ 46. Evaluate the expression. –4.5(2.8)(3.6 – 1.9) a. –34.02 b. –21.42 c. 21.42 d. 34.02 ____ 47. At a golf tournament the golfers had a mean score of –2.25. If there were 60 golfers in the tournament, what was their combined score? a. –150 c. 135 b. –135 d. 150 ____ 48. Evaluate the expression. a. c. b. d. ____ 49. What number makes this equation true? a. c. b. d. ____ 50. The low temperature was –25 °C in January. What was the low temperature in degrees Fahrenheit? Use the formula a. –102.6 °F b. –12.6 °F to convert to degrees Fahrenheit. c. 8.8 °F d. 12.6 °F ____ 51. Evaluate a. c. b. d. ____ 52. Calculate. a. –9.36 b. –9.2 c. –2.96 d. –2.8 ____ 53. Nancy has $200 in a savings account that earns 4% annual interest. If she does not make any deposits or withdrawals, how much interest will she earn in 3 years? Use the formula a. $24.00 c. $32.00 b. $24.97 d. $33.97 ____ 54. Ethan has a savings account in which the interest is compounded biannually. If you were to figure how much interest Ethan would earn in 4 years, what would you use for n in the interest formula . a. 2 c. 6 b. 4 d. 8 ____ 55. Juan has $3,000 in a savings account that earns 5% annual interest. If Juan does not make any deposits or withdrawals, how much money would he have after 4 years? Use the formula . a. $3,600.00 c. $3,750.00 b. $3,646.52 d. $3,828.84 ____ 56. Evaluate when x = . a. c. b. d. 3 ____ 57. Which best explains what happens when a proper fraction is raised to a positive exponent greater than 1? a. The product increases but does not ever become greater than 1. b. The product increases to become a whole number or mixed number. c. The product decreases to eventually become a negative number. d. The product decreases but does not ever reach 0. ____ 58. If you put money into an account that earns 10% annual compounded interest, in which year will you have doubled your money? Use the formula . a. year 7 c. year 9 b. year 8 d. year 10 ____ 59. Evaluate the expression a. –29.2 b. –25.36 when x = –3.2. c. 37.36 d. 56.56 ____ 60. Which best explains what happens a negative number is raised to a positive exponent greater than 1? a. The product always increases. b. The product can increase or decrease depending upon whether the base is greater than –1 or not. c. The product can increase or decrease depending upon whether the exponent is odd or even. d. The product always decreases. Short Answer 61. Evaluate the expression. 62. What two mixed numbers have a sum of and a difference of ? 63. Evaluate the expression. 64. Alice practiced her guitar for to practice a total of goal? hours Monday, hours Tuesday, and hours Wednesday. Alice wants hours by Thursday. How many hours must Alice practice Thursday to achieve her 65. Why is the same as ? 66. Nora started watching a movie at 2:45 p.m. She watched the movie for for hours before stopping the movie hours to eat dinner. After dinner, Nora finished watching the remaining hours of the movie. At what time did the movie end? 67. Why is the same as ? 68. Evaluate the expression. 69. In yesterday’s game, Pedro pitched innings. The bullpen pitched innings. How many more innings did Pedro pitch than the bullpen? 70. Evaluate the expression. 71. Which number makes this equation true? 72. Calculate the product. 73. Calculate the quotient. 74. What is ? 75. What is the reciprocal of a number? 76. A lap around Natalie’s neighbourhood is kilometres. Natalie ran laps before walking the rest. How many kilometres did Natalie run? 77. The area of a dog crate is square feet. The length of the crate is feet. What is the width of the crate? 78. When you divide mixed numbers, how do you know that the quotient will be less than 1? 79. What number makes this equation true? 80. A square basement has a length of metres. What is the area of the basement? 81. Evaluate the expression. 82. Steve thought that is equal to 144. Steve is incorrect. What should the solution be? 83. Calculate. 84. Ling calculated . Ling’s calculation is shown below. What mistake did Ling make? 85. Assume that b is a positive integer. Is positive, negative, or 0? 86. What is the first step in evaluating this expression? 87. Which two integer values makes this equation true? 88. Evaluate the expression when x = –3 and y = 4. 89. Jim calculated this way. Juanita said that Jim’s solution is incorrect. Who is correct: Jim, Juanita, or neither? 90. Marcus evaluated this way. Marcus is incorrect. What should the solution be? 91. What is the opposite of 92. Explain why ? is a rational number. 93. Which symbol makes this statement true? 94. In Mr. Wong’s class, 14 out of 25 students are girls. What decimal represents the part of Mr. Wong’s class that are girls? 95. Name three fractions between and . 96. How can –0.72 be written as the quotient of two integers? 97. If a is a positive integer and b is a negative integer, what symbol makes this sentence true? 98. Mrs. Garcia gave a math quiz with 15 questions. Gautam answered 13 questions correctly. What decimal represents the part of the quiz that Gautam answered correctly? 99. Order the fractions from greatest to least? 100. A game show host asks a contestant would he like to play for 0.525 of the money or of the money. Which should the contestant choose? Explain why. 101. Nate said that –15.5 ÷ (–3.6) would result in a negative quotient. Melissa said that -15.5 ÷ 3.6 would result in a negative quotient. Who is correct? 102. What is the sum of ? Write the sum as a decimal. 103. Sherie studies for her math test for hours. She spent hours writing a paper. How many hours longer did Sherie spend studying for math than writing her paper? 104. Evaluate the expression. 105. The profits in thousands of dollars for the Carr Memorial Ice Palace is shown for a 5-month period. Month Profits (in $10 000) March –6.4 April –3.8 May –0.7 June 5.8 July 12.6 What was the mean monthly profits for the period shown? 106. Calculate. 107. When multiplying rational numbers that are ? 0, how can you tell if the product will be negative? 108. Evaluate the expression when x = –4.5 and y = 2.4. 2x – 3y 109. Canadians Victor Davis and Mark Tewksbury have won Olympic Gold Medals in swimming. Davis won the 200-metre breaststroke in 1984 with a time of 2:13.34 (minutes: seconds). Tewksbury won the 100-metre backstroke in 1992 with a time of 0:53.98. How much longer did Davis’s race last than Tewksbury’s? 110. What value makes the equation true? 111. A radioactive material has a half-life of 1 day. The material decays according to the equation . Mass M is measured in grams and time t is measured in days. What is the mass of the material after 3 days? 112. What value makes this equation true? 113. Evaluate the expression. 114. Rajiv has $750 in an account that earns 3% every 6 months. If he does not make any withdrawals or deposits, how much compounded interest will Rajiv earn in 30 months? Use the formula . Round to the nearest cent, if necessary. 115. Mr. Kingsley bought a stock for $2000. Each month for the first 4 months, the stock retained 92% of its value. What was the stock worth after 4 months? Round to the nearest cent, if necessary. 116. Evaluate the expression when . 117. Which has the greatest value? or 118. Ms. Montoya bought a car for $25 000. The car is expected to retain 90% of its value each year for the first 5 years. How much money will the car be worth in 5 years? 119. Why is it better to receive compounded interest than simple interest? 120. Madison has $800 in an account that earns 0.25% monthly interest. If Madison does not make any deposits or withdrawals, how much money will she have after 1 year? Use the formula and round to the nearest cent. Problem 121. Maria was given the problem to solve. Maria said the sum was . Without solving the problem Tony said that Maria’s sum could not be correct. Tony is right. Explain how he could know. Then give the correct sum. 122. Amy has the following schedule at camp: Activity Time Horseback riding hours Swimming hours Softball hours Horseback riding begins at 7:30 a.m. Lunch is after softball. If there is hour between activities including from softball to lunch, at what time does Amy start lunch? Explain. 123. Nancy wants to add . Nancy said that if she adds to both addends that she will have easier numbers to add and the same sum. Explain whether Nancy’s method will give the correct sum. If it does not, explain what Nancy should have done. 124. Mel wants to subtract . Mel said that if he subtracted from both numbers, he could then subtract a mixed number from a whole number and still get the same difference. Explain whether Mel is correct. If Mel is not correct, explain what he should have done. 125. Ms. Cummings spent and hours in her garden this week. She spent hours Monday, hours Tuesday, hours Wednesday. The rest of the time she spent Thursday and Friday. She spent the same amount of time in each of those two days. How many hours did Ms. Cummings spend in the garden Thursday? Explain how you found your answer. 126. Why does ? 127. Mrs. Daniels needs to carpet a room that is feet long and feet wide. How many square yards of carpeting will Mrs. Daniels need? (Hint: 1 sq yd = 9 sq ft) 128. Some people divide fractions by first renaming them as decimals. Sometimes it is much easier then dividing fractions, but why is this not always an efficient method? 129. Lenny said that he could find the product of by multiplying and . Explain why Lenny’s method does not work. Then find the product. 130. Lisa has a box that is a cube with edges of edges of inches. She wants to pack as many cubes as she can that have inches. Solve and explain how to find how many smaller cubes Lisa can pack in the box. 131. What are the necessary steps to evaluate ? Then evaluate. 132. Roger calculated . His method is shown below. Roger is incorrect. Explain what was done incorrectly. Redo the solution, making the necessary corrections. 133. Brian calculated 6(–4) – 4(–4) in the following way. 6(–4) – 4(–4) = 2(–4) = –8 Is Brian’s calculation correct? Explain why or why not. 134. Explain the steps needed to evaluate the following expression. Then evaluate. 135. Explain your steps in evaluating the following expression when x = –6 and y = –2. Then evaluate. 136. Name three fractions between and . Explain how you found your fractions. 137. Kendra said that –3.4 is greater than –3.35. Explain whether or not Kendra is correct. 138. What is written as a fraction? Explain why or why not is a rational number. 139. The record low temperatures in degrees Fahrenheit for Canada is –81.4. The record low temperature in degrees Fahrenheit for Europe is –72.6 and –90 for Asia. Order these temperatures from greatest to least. Explain how you determined your answer. 140. Explain the difference between integers, whole numbers, natural numbers, and integers. 141. What is the sum of ? Write your sum as a decimal and explain your steps. 142. Mrs. Teece has a double oven in her kitchen. She is going to bake two different dishes. The recipe for one dish calls for one oven to be set at 425 °F. The other dish needs the oven to be set at 150 °C. What is the difference in temperatures in degrees Fahrenheit and in degrees Celsius? Explain how you found your answers. Use these formulas: and 143. What is the difference of . ? Explain how you found your difference. 144. Marvin wants to add by converting the mixed numbers to decimals. Why is this an efficient way to find the sum? When would Marvin’s way not be efficient? Then find the sum the way Marvin would. 145. The daily temperatures in degrees Celsius at 12 midnight for a period of one week is shown in the table. S –15 M –12 T –6 W 2 T –3 F –10 S –12 What was the mean temperature in degrees Celsius and in degrees Fahrenheit? Explain how you found your answer. 146. Todd has his foot on one side of a room. He will walk halfway across the room and then stop. Then he will walk halfway from there. Todd continues this pattern. By doing this, will Todd’s foot ever reach the wall on the other side of the room? Explain why or why not. 147. Jill said that . Explain whether or not Jill is correct. 148. Gabe said that . Explain whether or not Gabe is correct. 149. Sharon opened an account with $500 and earned 4% annual interest for 5 years. The next year, Andy opened an account with $500 and earned 5% interest for 4 years. Who has more money? 150. Evaluate . Explain your steps.