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Nogales Math Files forCONGRESS ELEMENTARY SCHOOL

2004 Metrobank-MTAP-NCR Math Challenge

Division Orals - Grade 4

A. 15-second questions 2 points each

90,000 1. What is the value of 9 in 496,235?

9 2. What number times 7, plus 18 equals 81?

P100 3. One-half kg of chicos cost P20. If there are 6 pieces, how muchwill 2 dozens of the same size cost?

18 dm 4. The perimeter of a regular hexagon is 108 dm. How long is one

side?

45 5. In a party, the ratio of boys to girls is 2:3. If there are 30 boys,

how many girls are there?

11, 13, 17, 19 6. Give all the prime numbers between 10 and 20.

16 7. Ponkans cost P6 each. How many can you buy for P100?

6 8. What is the remainder if 279 is divided by 13?

3, 16 9. What two factors of 48 have a sum of 19?

14 & 21 10. What two numbers have a sum of 35 and a difference of 7?

79 11. What is the biggest prime number less than 80?

B. 30-second questions 3 points each. Use pie=3.14

27 m. 1. The perimeter of a rectangle is 86m. If one side is 16m, what isthe other side?

47.1 dm 2. A circular tablecloth has a diameter of 15 dm. What is itscircumference?

10 3. There are 100 oranges in a box. If 15 children get the same

number of oranges, how many oranges will be left?

P24 4. Rose bought a blouse marked P160 at a 15% discount. How

much did she save by buying it during a sale?

37.5 cm2 5. A lot measures 10m by 15m. On a plan using a scale of 1 cm :2 m, what is the area of the lot on the plan?

864 cm2 6. What is the total surface area of a cube of side 12 cm?

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Nogales Math Files forCONGRESS ELEMENTARY SCHOOL

C. 1-minute questions 5 points each

6908 cm3 1. A can of powdered milk has a diameter of 20 cm and a height of

22 cm. What volume of milk does it contain?

357 2. I am a 3-digit number. My hundreds digit is 2 less than my tensdigit and my ones digit is 2 more than my tens. What number am

I if the sum of my digits is 15?

500 3. On a christmas tree, the ratio of yellow lights to green lights tored lights is 1 : 2 : 3. If there are 1,500 lights, how many green

lights are there?

153 4. A vendor sold 491 kg of chicos and 273 kg of oranges. He sold

65 kg more of mangoes than oranges. How many more kg ofchicos than mangoes did he sell?

36 5. Rica is painting dots on a box. There are 12 dots in the first row,

16 dots in the second row, 20 dots in the third row. If the patterncontinues, how many dots will be in the seventh row?

930 6. Find the sum of 2 + 4 + 6 + + 58 + 60

Clincher questions

5 1. How many multiples of 4 are there between 15 and 35?

22 x 32 x 11 2. Use exponents to express 396 as a product of its prime factors.

5 : 4 3. A bottle weighs 15 grams when empty, 25 grams when full of

water and 23 grams when full of alcohol. What is the ratio of

equal volumes of water and alcohol?

Do-Or-Die questions

31.5 1. A car uses 9 liters of gasoline for a distance of 80 km. How many

liters will be needed for a round to a city 140 km away?

17 2. A small embroidery factory can finish 10 dozen pairs of pillow

cases in one day. The company received an order for 2000 pairs

of pillow cases. How many days, to the nearest whole number of

days, will the company need to fill in the order?

Filename: Division Orals_2004G4.doc

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