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2002 FIRST NATIONAL-Metrobank-MTAP-DepEd Math Challenge Grade 5 Solve each item and write the answer on the blank before the number. [Use π = 3.14] _________ 1. What is the value of 8 in 86 543 217? _________ 2. Write MDXL in Hindu-Arabic. _________ 3. Write three million, four hundred fifty thousand, sixty-five in figures or standard form. _________ 4. How many times greater is the underlined 6 in 4 567 564 than the 6 that is not underlined? _________ 5. If I can save ₱75 a month, how much do I save in 4 years? _________ 6. Find N in the pattern: 2, 3, 5, 8, 12, ___ , N. _________ 7. What is the remainder when 564 is divided by 23? _________ 8. A farmer harvested 109 cavans of palay from his field. If each cavan sold for ₱350, how much did he get? _________ 9. What is the sum of the first 5 prime numbers greater than 50? _________ 10. Three more than 6 times a number is 45. What is the number. _________ 11. If I multiply a number by 8 and then subtract 15 from the product, the result is 65. what is the number? _________ 12. Find the sum of 1 + 2 + 3 + 4 + … + 18 + 19 + 20. _________ 13. Erl is 3 years older than Dhang. Together, their ages total 21 years. How old is Erl? _________ 14. What is the GCF of 54 and 90? _________ 15. What is the LCM of 54 and 90? _________ 16 What is the smallest number that has 12, 13 and 30 as factors? 1

5

_________ 17.Evaluate: 3 ÷ [4 2 x 16 ].

_________ 18Reduce

56

to lowest terms.

84

3

3

_________ 19.Jean bought 5 5 m of white cloth and 3 4 m of blue cloth. How many meters of cloth did she buy? 2 4 _________ 20. Zeus has a string 26 3 dm long and Ador has one that is 17 5 dm long. How much longer is the string of Zeus? 2 1 _________ 21.Divide 4 3 by 3 9 . 2

_________ 22. Add to the quotient of 4 divided by 5. 3

7

_________ 23.Change 5 13 to an improper fraction. _________ 24. Joy bought 4 mangoes for ₱46. At the same rate, how much would a dozen cost? _________ 25. Hercules had a temperature of 39.4 oC this morning and 37.8 OC this afternoon. By how much did the temperature go down?

_________ 26. If 4.26 ÷ 3 = 1.42, what is 42.6 ÷ 0.142? _________ 27. Change 155% to a fraction in lowest terms. 1

_________ 28.Change 2 5 to percent. _________ 29. A student got 90% of a test. He answered 36 items correctly. How many items were in the test? _________ 30. Out of 100 students in Grade 5, 48 are boys. What percent of the Grade 5 students are girls? _________ 31. There are 450 Cub and Boy Scouts in a school. If 70% are Cubs, how many are Boy Scouts? _________ 32. Find N if N : 90 = 14 : 30. _________ 33. If 200 is divided in the ratio 1 : 2 : 5, what is the middle part? _________ 34. If 7 men can do a job in 6 days, how many men can do the work in 3 days?

_________ 35. A restaurant charges 3.5% service tax. If your order amounted to ₱210.50, how much in all did you pay? _________ 36. Tessie uses 2.2 meters of cloth for one uniform. How many uniforms can she make from 20 meters of cloth? _________ 37. Find the perimeter of a regular pentagon with sides that are 90 dm long. _________ 38. A circular man-made lake has a radius of 30 m. What is its area? _________ 39. A rectangular field is 95 m long and 78 m wide. If you run around it 4 times, how many meters will that be? _________ 40. An angle is twice its complement. Find the angle. _________ 41. A closed box is 7 dm by 4 dm by 5 dm. What is its total surface area? _________ 42. What is the volume of the box in #41? _________ 43. The base of an isosceles triangle is 29 cm and the perimeter is 75 cm. How long is a leg? _________ 44. A circular pool has a diameter of 24 meters. If you walk around it, how many meters will that be? _________ 45. A base angle of an isosceles triangle is 52 o. Find the vertex angle. _________ 46. An angle is 10o more than its supplement. Find the angle. _________47. Nelly made a circle graph to represent her day of 24 hours. If she works for 8 hours, how many degrees is the sector that represents her work? _________ 48. The scale of a map is 1 cm to 30 km. If two cities are 450 km apart, how far apart are they on the map? _________ 49. The parallel sides of a trapezoidal field are 48 m and 64 m. If they are 45 m apart, what is the area of the field? _________ 50. How much soil will be needed to raise a flower plot by 1 dm if the plot is 6.5 m long and 4 m wide?