Name: Teacher: 5th Grade Math-A-Thon *If not enough space is available to work out a problem, please use a separate sheet of paper* Hungry Yet? Read each world record below. Write the missing digit. Then place the letter over the digit at the bottom of the page to answer the riddle. 1. Greatest number of people at a barbecue: thirty-five thousand, seventy two: 35, 72. (W) 2. Heaviest chocolate egg: seven thousand, five hundred sixty-one pounds: 7, 61. (N) 3. Largest hamburger: five thousand, six pounds: 5,00. (E) 4. Heaviest pancake: four thousand, two hundred thirty-eight pounds: 4, 38. (A) 5. Largest cherry pie: twenty-five thousand, eight hundred ninety pounds: 25,8 0. (F) 6. Heaviest salad: one hundred fourteen thousand, eight hundred eighty-five pounds: 11, 885. (U) 7. Largest sundae: thirty-three thousand, six hundred sixteen pounds: 3,616. (L) 8. Largest portion of mashed potatoes: eighteen thousand, two hundred sixty pounds 1, 260. (G) 9. Longest sausage: five thousand, nine hundred seventeen feet: 5,9 7. (O) What does a chicken speak? 9 1 0 3 3 2 5 8 4 2 8 6
The Good Old Days Rob and Soup were young boys during the 1920s. Back then, things were much cheaper than they are today. For example, Rob and Soup paid ten cents each for a ticket to a double feature. Today a ticket to one movie could cost 80 times as much! Directions: Look at the ten items listed in the chart below. Notice how little each item cost in the 1920s. For # 10-19, Use sales flyers from newspapers and catalogs to find the current price of each item. Record each price, then calculate the difference between the past and present prices. Finally, circle the item with the largest price increase. Item 1920 s Price Current Price P rice Difference 10 1 movie ticket 10 11 1 Coca-Cola 5 12 1 Tootsie Roll 1 13 1 Hershey s bar 5 14 1 board game 39 15 1 sled $1.39 16 1 haircut 25 17 1 pair of clamp-on hockey $1.00 skates 18 1 hardcover adventure novel 50 19 1 professional-league baseball $1.00 20. 6,038 21. 96 22. 32 23. 638 x 9 x 74 x 86 x 60 24. 2431 25. 1370 26. 618 27. 5046 x 83 x 69 x 54 x 29 28. 354 29. 6843 30. 8217 31. 4538 x 76 x 74 x 52 x 4 32. 9286 33. 6387 34. 427 35. 7064 x 53 x 4 x 74 x 60 36. 676 37. 76 38. 365 39. 1196 x 93 x 77 x 27 x 57
Subtract. Borrow when needed. 40. 92.53 41..038 42. 34.58-17.41 -.019-11.68 43. 7.66 5.84 = 44..931 -.878 = 45. 42.56 40.09 = 46. 629.13 418.97 = 47. 8.037 -.693 = 48. 13.123 9.925 = 49. Solve. Use the inverse operation 50. 400 51. 5,000 52. 36,000 to check the problem. - 274-1,473-12,765 53-21 For questions 53-54, use the table. Game 1 st Half 2 nd Half Total 1 36 23? 2 13 36 49 3 25? 97 53. What was the total number of points scored in Game 1? 54. How many points were scored in the 2 nd half of Game 3? 55. Maria has 1,400 stamps. Her brother has 567 stamps. How many stamps do Maria and her brother have in all? 56. The fourth- and fifth-grade classes collected 1,600 cans of food during the annual food drive. The fourth-grade class collected 742 cans. How many cans did the fifth-grade class collect? For questions 57-58, estimate by rounding. 57. 25 58. 348 59. Jeff has $40.00. He wants to buy a 32 279 book for $19.99, a pen for $10.29, 68 152 and computer software for $29.75. + 17 + 375 How much more money does Jeff need?
Complete each sequence below by supplying the missing terms. Then write the rule for the pattern. Use the back of this page if you need more space. 60. 6, 13, 20, 27,,, 61. 2, 6,, 54, 162,, 62. 9,, 29, 39,, 59, 63. 4, 20, 100, 500,,, 64. 2, 7, 17, 22, 32, 37,,, 65. ¾,, 27/64, 81/256,, 729/4096, 66. 1, 3,, 10, 15,, 67., 44, 66, 88,,, 68. 2, 4, 4, 6, 6, 6,,, 8,, 69. 4000, 2000,, 500,, 70. 12, 23, 34, 45, 56,,, 71. 1, 6, 36, 216,,, 72. 100, 10,, 20, 80, 30, 70,, 73. 96, 48, 24, 12,,, 74. ½, 1 ½,, 3, 3 ½,, 5, 75..01,.05,.10,,.50, 1.00,, 10.00, 76. A, 1, Z, B, 2, Y,,,, 77. 1, J, 2, F, 3, M, 4, A,,, 78. 1.2, 2.6, 3.18, 4.54, 5.162,,, 79. ¼, ½, ¾,, 1 ¼,, 1 ¾, 80. 1, 8, 3, 10, 5, 12,,,
81. Matt wants to create a dog pen with an area of 48 sq. ft. for his dog. He wants to know all of the possible dimensions that he could use to create his dog s pen. List all of the possible dimensions that Matt could use: 82. Amanda has 60 sq. ft. of fencing to use to make a rectangular garden. She wants to have the greatest possible area. What dimensions should she use? 83. Madison is building a fence to enclose a 15 X 30 meter rectangular area. The fence needs a post every 3 meters. How many posts does Madison need? 84. Based on the class set of data, which statement is correct? Class A Class B Class C Class D 76,31,77,74,38 52,94,76,80,74 81,43,75,93,46 78,30,35,84,79 A. Class A has the greatest median. C. Class B has the greatest median. B. Class C has the smallest median D. Class A has the smallest median. 85. How much smaller is the range of math scores for Miss Fowler s class than Mrs. Lillis class? Miss Fowler s Class Mrs. Lillis Class 74,84,88,62,70,99,100 96,73,81,70,58,93,98 A. 3 B. 2 C. 4 D. 5 86. Freddie was stacking book on his bookshelf. He put 30 books on the 1 st shelf, 26 books on the 2 nd shelf, and 22 books on the 3 rd shelf. If this pattern continues, how many books will he place on the 6 th shelf? A. 18 B. 10 C. 14 D. 6
87. Chelsea was planting flower seeds in her garden. She planted 60 seeds in the firs row, 67 seeds in the second row, 76 seeds in the third row, and 81 seeds in the fourth row. If this pattern continues, what will be the number of seeds in the tenth row? A. 88 B. 109 C. 123 D. 116 88. Based on the team data, which statement is correct? Number of Points Scored in Basketball Tournament Games Team Game 1 Game 2 Game 3 Game 4 Game 5 Duke Blue Devils 84 73 76 88 73 N.C. State Wolfpack 74 82 82 79 65 Florida Gators 83 80 83 64 83 UNC Tarheels 80 78 77 78 81 A. The mode for the N.C. State Wolfpack is larger than the mode of the other teams. B. The mode for the Duke Blue Devils is 10 points greater than the mode for the Florida Gators. C. The mode for the UNC Tarheels is smaller than the mode of all the other teams. D. The mode for the Florida Gators is 5 points greater than the mode for the UNC Tarheels. 89. Study the following pattern of number sentences: 1 st 6 x 4 = 24 2 nd 60 x 40 = 2400 3 rd 600 x 400 = 240000 4 th 5 th 6 th What would the 6 th number sentence be? A. 60,000 x 40,000 = 2,400,000,000 C. 600,000 x 400,000 = 240,000,000,000 B. 6,000 x 4,000 = 24,000,000 D. 60,000 x 4,000 = 240,000,000 90. What is the missing fraction? 2, 4,?, 16 3 6? 24 A. 6/10 B. 8/12 C. 16/36 D. 12/8
91. Freddie has a bag of 200 plastic coins and gives them all to his 4 friends. They share the contents of the bag equally. How many coins will each person get? How many coins will be left over? 92. The Scrabble Club is going to the State Championship. There are 21 boys and 29 girls in the club. If only 10 students can ride in each Scrabble Club van, how many vans will be needed? A. 7 B. 6 C.8 D. 5 93. The same Scrabble Club is traveling to the State Championship. If only 7 students can ride in each Scrabble Club van, how many vans will be needed? A. 7 B. 6 C. 8 D. 5 94. Johnny makes a rectangular shape out of his baseball cards. The rectangle has 35 rows and 24 columns. How many baseball cards does Johnny have? 95. A carpeted classroom floor measures 32 ft. x 26 ft. What is the area of the classroom floor in: A. square feet? B. square inches? 96. Mr. Vartan takes a 6:15 train every morning to work. When he gets off the train, he walks 15 minutes to his job. He gets there at 7:20 AM. How long is his train ride? 97. Becky wants to make as big a dog run as she can. She has 92 feet of fence. What dimensions should the dog run be so that it has the greatest possible area? 98. A school will send 13 busloads of students to a field-hockey match. Each bus can hold 52 students. How many students can travel to the match on all the buses? 99. Ned is a trucker. He drives about 450 miles each day. He has to make a 3,000 mile trip. Can he make it in 8 days? (Show your work!!!) 100. Karl counts 36 seats in each row. There are 44 rows in the auditorium. About how many seats are in the auditorium? Congratulations! You have completed all 100 problems!! Thank you for supporting your school!