2007 Math Challenge Grade 5
Solve each item and write the answer in the blank before the number.
__________________ 1. What is the place value of the underlined digit in 4,865,480?
__________________ 2. What is the value of 6 in 3,658,900
__________________ 3. Write in figures: sixty-five million, seventy-five thousand, forty-five.
__________________ 4. Round 356, 658 to the nearest thousand
__________________ 5. Round 5,696,850 to the nearest ten thousand
__________________ 6. Write MCMLXXXIX in Hindu Arabic
__________________ 7. Write 1960 in Roman Numerals
__________________ 8. 8,900 is equal to how many hundreds?
__________________ 9. (45 x 9) + (14 x 9) = N x 9. What is N?
__________________ 10. What is the remainder when 5678 is divided by 23?
__________________ 11. What is the average of 47, 59 and 68?
__________________ 12. Round to the nearest hundred to estimate the sum: 7429 + 8573
__________________ 13. Round to the nearest hundred and estimate the difference of 9572 - 5325
__________________ 14. If 875 – N = 427. What is N?
__________________ 15. Lily can type 872 words in 15 minutes while Luz can type 795. How many more
words can Lily type in 15 minutes than Luz?
__________________ 16. Mar wants to buy a school bag worth ₱275. He has ₱186.50. how much more does
he need?
__________________ 17. If 3456 x 245 = 846,720. What is 34 560 x 2 450
__________________ 18. How many 63rds are there in 7/9?
__________________ 19. Change 6 5/6 to an improper fraction.
__________________ 20. Change 127/9 to a mixed number
__________________ 21. If 8/13 = N/91 what is N?
__________________ 22. Reduce 68/85 in lowest terms
__________________ 23. Express 2520 as a product of its prime factors using exponents
__________________ 24. What is the LCM of 36, 48 and 60?
__________________ 25. What is the GCF of 36, 48 and 60?
__________________ 26. Liza bought 4 dozen roses. She prepared 5 vases of roses with 9 flowers in each
vase. How many flowers remained?
__________________ 27. Venus bought 6 t-shirts for gifts. If each cost ₱109.50, how much did she pay for
them?
__________________ 28. Round both factors to the nearest hundred and estimate the product of 337 x 685
__________________ 29. For a seminar Lucy brought 900 sheets if paper. Each of the 154 participants used 4
sheets. How many papers remained to Lucy?
__________________ 30. In a school, there are all 23 classes. If each class has an average of 45 students and
489 of them are boys. How many students in the class are girls?
__________________ 31.a vendor bought 4 dozen of pineapples for ₱864. How much did she pay per fruit?
__________________ 32. If Pete harvested 35 4/7 kilos of pechay and 49 ¾ kilos of cabbage. How much more
cabbage than pechay did he harvest?
__________________ 33. A rectangular garden has length of 6 2/3 m and a widh of 3 3/5 m. what is its
perimeter?
__________________ 34. What is the area of the rectangle in #33?
__________________ 35. How many pieces of ribbon 2 2/3 dm can be cut from a roll of ribbon 25 m long?
__________________ 36. A farmer harvested 7 baskets of mangoes with55 mangoes in each basket. If there
were 23 mangoes not in a basket, how many mangoes did he harvest?
__________________ 37. Change 7/13 to percent, to the nearest tenth of a percent
__________________ 38. Change 567/1000 to a decimal
__________________ 39. What is the ratio of 43 cm to 7 dm?
__________________ 40. What is 58% of 1040 to the nearest whole number?
__________________ 41.in a school with an enrollment of 960 pupils. 432 are girls. What percent are the
boys?
__________________ 42. A vendor bought 60 pineapples at ₱18.50 each and sold them at ₱25. If 4 were
rotten before he was able to sell the pineapples. How much did he gain from the
pineapples?
__________________ 43. In a factory, there are 2 820 workers. Of theses, 40% are n the 8 am shift. 35% are in
the 4 pm shift and the rest are in the 10 pm shift. How many workers are in the night
shift?
__________________ 44. Rose made a circle graph of how she spends her 24-hour day. If she sleeps 9 hours a
day. How many degrees is the sector representing her sleep?
__________________ 45.the scale of a map is 1 cm is to 25 km. if two towns are 6 cm apart on the map. How
far apart are they?
__________________ 46. If 𝟁 represents 15 pupils and 13 𝟁 are drawn for grade 5. How many grade 5 pupils
are in the school?
__________________ 47. Two numbers are in the ratio of 5:8. If the difference between them is 45. What is
the smaller number?
__________________ 48. Mark has ₱650; Pete has ₱50 more than half as much as Mark. Together, how much
do the two boys have?
__________________ 49. A can has a square base which is 30 cm on each side. The height is 40 cm. if 1dm 3 =
1 liter. How many liters of oil can the can hold?
__________________ 50. A rectangular park has a length of 95 m and a width of 80 m. how many times you
will jog around it completely so that you have to cover a km?
