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MATH COUNTS

Countdown Round Bingo All answers are from 1 – 60, inclusive. MATH COUNTS. . On your Bingo Card, put the following numbers in any order:. 1 2 4 5 8 11 13 14 17 20 26 27 31 32 36 40 41 43 44 52 54 55 56 58.

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MATH COUNTS

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  1. Countdown Round Bingo All answers are from 1 – 60, inclusive. MATHCOUNTS 

  2. On your Bingo Card, put the following numbers in any order: 1 2 4 5 8 11 13 14 17 20 26 27 31 32 36 40 41 43 44 52 54 55 56 58

  3. 1. Kyle missed 21 of the first 50 free throws he attempted. What percent of those first 50 free throws did he make?

  4. Answer: 58 percent

  5. 2. What is the area, in square centimeters, of square ABCD in the figure shown if DX = 4 cm and AX = 5 cm? D 4 C X 5 A B

  6. Answer: 41 square cm

  7. 3. Five U.S. coins are worth a total of 35 cents. How many of the coins are dimes?

  8. Answer: 2 coins

  9. 4. How much more than 42 is 33?

  10. Answer: 11

  11. 5. How many obtuse interior angles are in an obtuse triangle?

  12. Answer: 1 angle

  13. 6. What is the sum of the number of faces and edges of a triangular prism?

  14. Answer: 14

  15. 7. The value of eight nickels and six dimes is the same as four nickels and how many dimes?

  16. Answer: 8 dimes

  17. 8. Fred has 2 yellow, 2 red and 2 green tokens. One red token is equal to 9 green tokens. One yellow token is equal to 3 green tokens. Fred converts all of his tokens to green tokens. How many green tokens does he have?

  18. Answer: 26 green tokens

  19. 9. What is the value of ?

  20. Answer: 43

  21. 10. The average of five numbers is 16. Four of the numbers are 16, 16, 16 and 15. What is the value of the fifth number?

  22. Answer: 17

  23. 11. In the figure shown, polygons ABCD, CDEF and DEGH are squares. The length of segment FG is 6 cm. How many square centimeters are in the area of hexagon ABFGHD? E G F H C D B A

  24. Answer: 27 square centimeters

  25. 12. How many positive integers are less than 10p?

  26. Answer: 31 integers

  27. 13. What is the greatest possible integer less than 60 that is divisible by 3 and divisible by 6?

  28. Answer: 54

  29. 14. Two sides of an isosceles triangle are 15 cm and 10 cm. What is the greatest possible perimeter of this triangle, in centimeters?

  30. Answer: 40 centimeters

  31. 15. How many more boxes are needed if 70 ornaments are packaged in boxes that each hold 5 ornaments rather than boxes that each hold 7 ornaments?

  32. Answer: 4 boxes

  33. 16. What is the sum of the first seven positive even integers?

  34. Answer: 56

  35. 17. A particular store sells a pack of 7 pencils for $1.40. What is the average cost per pencil, in cents?

  36. Answer: 20 cents

  37. 18. On a protractor, ray BA goes through the 85-degree mark and ray BC goes through the 30-degree mark. What is the measure, in degrees, of angle ABC? A 85 30 C B

  38. Answer: 55 degrees

  39. 19. Each side of pentagon ABCDE has length less than or equal to 7 units, AB = 5 units and BC = 6 units. How many units are in the greatest possible perimeter of ABCDE?

  40. Answer: 32 units

  41. 20. Two figures each have a perimeter of 40 feet. One is a square and one is a rectangle with dimensions of 4 feet by 16 feet. What is the positive difference in the number of square feet of their areas?

  42. Answer: 36 square feet

  43. 21. What is the greatest integer less than ?

  44. Answer: 13

  45. 22. Pens come in a package holding 4 pens. Rina’s teacher bought 13 packages of pens. How many pens did she buy?

  46. Answer: 52 pens

  47. 23. How many integers between 20 and 90 are perfect squares?

  48. Answer: 5 integers

  49. 24. What is the greatest two-digit multiple of 4 that is less than 47?

  50. Answer: 44

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