Tổng hợp đề thi Violympic Toán Tiếng Anh lớp 4 năm 2015-2016

TỔNG HỢP ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 NĂM 2015-2016

1. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 1 NĂM 2015-2016

2. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 2 NĂM 2015-2016

3. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 3 NĂM 2015-2016

4. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 4 NĂM 2015-2016

5. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 5 NĂM 2015-2016

6. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 6 NĂM 2015-2016

7. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 7 NĂM 2015-2016

8. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 8 NĂM 2015-2016

9. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 9 NĂM 2015-2016

10. ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 10 NĂM 2015-

2016

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 1 NĂM 2015 - 2016

Exam number 1: Fill in the blank with the suitable number.

Question 1: How many days are there in September? Answer: There are .............. days.

Question 2:

Find x such that x : 5 = 1537 Answer: x = ..........

Question 3:

Mary learns fifteen new words per day. How many new words does she learn for seven days? Answer: ......... days.

Question 4: The area of the following rectangle is ............ cm2.

Question 5:

The perimeter of the following square is .................cm.

Question 6:

Calculate: (12639 + 21034) x 2 = ...........

Question 7:

Bella goes to the zoo. She makes a table of the number of animals at the zoo. (see the table below)

How many monkeys and birds are there? Answer: ...........

Question 8:

Calculate: 9876 : 6 x 6 = ..........

Question 9:

How many right angles are there?

Answer: There are ............ right angles.

Question 10:

There are 48 strawberries in 6 bags. How many strawberries are there in 9 bags?

Answer: There are ............. strawberries in 9 bags.

Exam number 2: Choose the most suitable answer in 4 available answers.

Question 1: Calculate: 6723 - 2195 = .........



A. 4258



B. 4285



C. 4528



D. 4582

Question 2:

Emma is 14 years old. Her sister's age is 11 years more than her age. How old is Emma's sister? Answer: Emma's sister is ............. years old.



A. 25



B. 23



C. 13



D. 15

Question 3:

What time does the clock show?



A. 2 : 50



B. 2 : 10



C. 10 : 20



D. 10 : 10

Question 4:

Mary goes swimming in the morning. What time can she go swimming?



A. 10:00 a.m



B. 16:00



C. 6:00 p.m



D. 14:00

Question 5:

Which number can replace the question mark? 400 x ? + 800 = 2000



A. 3



B. 6



C. 30



D. 60

Question 6:

Find the value of x such that x + 1606 = 2357. Answer: x = .........



A. 751



B. 715



C. 716



D. 761

Question 7:

Today is Thursday, December 17. Which day of the week is the day before yesterday?



A. Wednesday



B. Tuesday



C. Friday



D. Saturday

Question 8:

Two numbers have the product of 9315. If the product is five times as same as the greater number. The smaller number is ..........



A. 1863



B. 4



C. 1763



D. 5

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 2 NĂM 2015 - 2016

Bài 1: Tìm cặp bằng nhau

Trả lời: Các cặp bằng nhau là: 8000 : 4 = ..........; 9000 + 30 + 4 = ........; 9000 + 2000 + 4000 = .........; 9000 + 300 + 4 = ........; 5632 + 6872 = ..........; 8724 + 7373 = ..........; 9000 - 4000 + 2000 = ........; 9000 - 3000 = .........; 9000 + 40 + 3 = .........; 9000 + 400 + 3 = ..........

Bài 2: Đỉnh núi trí tuệ Let reach the intellectual peak by answering the questions.

2.1. Calculate: 2100 x 4 = ............



A. 4600



B. 4800



C. 8400



D. 8600

2.2:

38000; 39000; .......; 41000; 42000 The correct number fill the blank is ...........



A. 400000



B. 400



C. 40000



D. 4000

2.3:

Which of following numbers is the greatest?



A. 3472



B. 4732



C. 3742



D. 4372

2.4:

The perimeter of the figure below is .......... cm.



A. 20



B. 19



C. 21



D. 18

2.5:

Which of following is true?



A. 9000 x 2 > 6000 x 3



B. 4000 x 8 < 6000 x 4



C. 3000 x 2 = 2000 x 3



D. 8000 x 3 > 6000 x 4

2.6:

Solve: 8 thousands = ............ tens. The correct number fill in the box is ...........



A. 8000



B. 800



C. 80



D. 8

2.7:

What natural number is just before of 134?



A. 133



B. 136



C. 135



D. 132

2.8:

What number is 100 + 3000 + 20 + 7?



A. 1327



B. 1372



C. 3127



D. 2317

2.9:

The value of P is ...........



A. 1500



B. 600



C. 900



D. 100

2.10:

Find x such that x is a natural number and 76 < x < 78 Answer: x = ..........



A. 76



B. 78



C. 79



D. 77

Bài 3: Vượt chướng ngại vật

3.1: Calculate: 95213 - 8756 = ..........

3.2:

982605 The number's underlined digit is worth ..........

3.3:

Just before of 300000 is .............

3.4:

The value of expression: 3148 + 2672 : 4 is .................

3.5:

98247 < 9x134 The value of x is .............

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 3 NĂM 2015 - 2016

Bài 1: Fill in the blank with the suitable number

Question 1: How many hours are there in 4 days? Answer: There are ............. hours.

Question 2:

Calculate: 672g – 276g = ........... g.

Question 3:

How many years are in 3 century? Answer: There are ............ years.

Question 4:

There are ................ days in May.

Question 5:

Emily write down how many kilometers she walked each day.

How many kilometers did she walk on Sunday? Answer: ............ kilometers.

Question 6:

765 + … = 459 + 541 The missing number is ..........

Question 7:

Write forty-six thousand and fifty using digits. Answer: ................

Bài 2: Cóc vàng tài ba: Choose the most suitable answer in 4 available answers.

Question 1: 1/4 century = ........... years. The missing number is ..............



A. 20



B. 30



C. 25



D. 15

Question 2:

What time does the clock shown?



A. 6: 20



B. 4: 06



C. 4: 30



D. 6: 25

Question 3:

Find x such that x + 215 = 432 Answer: x = ..........



A. 657



B. 647



C. 217



D. 227

Question 4:

5kg = ........... g. The missing number is ...............



A. 5000



B. 50



C. 50000



D. 500

Question 5:



A. 75



B. 79



C. 77



D. 76

Question 6:

5250g + 1750g = ............kg The missing number is ..............



A. 7



B. 100



C. 70



D. 10

Question 7:

If m = 7 then 2000 x 3 + 2000 x m = ..........



A. 9000



B. 20000



C. 2000



D. 20000

Question 8:

The average of 75 and M is 82. The value of M is ............



A. 89



B. 86



C. 85



D. 79

Question 9: Today is September 2nd, four days ago is ............









A. August 28th B. August 30th C. August 29th D. August 27th

Question 10:



A. 6



B. 3



D. 5



C. 4

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 4 NĂM 2015 - 2016

Exam number 1: Đi tìm kho báu

Question 1: 2 minutes 30 seconds = ......... seconds

Question 2:

Calculate: 3512 + 4231 = .........

Question 3:

The value of 6132 + 1584 is ........

Question 4:

Subtract: 7000 - 4325 = ...........

Question 5:

Find x such that x - 582 = 964 Answer: x = .........

Exam number 2: Chọn các cặp giá trị bằng nhau

Answer: (1) = ......; (2) = ......; (3) = .....; (4) = ....; (5) = .....; (6) = ......; (10) = ......; (11) = .......; (13) = .......; (17) = ..... Nhập số thứ tự của các giá trị vào chỗ chấm để được các cặp giá trị bằng nhau

Exam number 3: Vượt chướng ngại vật

Question 1: If m = 16 and p = 75 then m + p = .........

Question 2: Write >; =; <: 3676 + 2015 ....... 2015 + 3676

Question 3: If a = 6 and b = 12 then 15 + a x b = .........

Question 4: There are 786 boy students and 572 girl students in a school. How many students are there in the school? Answer: There are ......... students.

Question 5: Think of a number that when you add 130 to it the answer will be 500. This number is ...........

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 5 NĂM 2015 - 2016

Exam number 1: Fill in the blank with the suitable number.

Question 1: Calculate: 91625−27356 = ............

Question 2:

Find the sum of following numbers: 31247 23564 18192 Answer: .................

Question 3:

The sum of two numbers is 47 and their difference is 15. The smaller number is ...............

Question 4:

Fill missing number in the blank 54723 + .......... = 27849 + 54723

Question 5:

Find the value of m - n + p for m = 9253; n = 3149 and p = 2674 Answer: m - n + p = ..............

Question 6:

Find the value of 2356 + a - b for a = 1482, b = 3105 Answer: .............

Question 7:

Find the value of m + n - p for m = 9253, n = 3149 and p = 2674 Answer: m + n - p = ...........

Question 8:

Find y such that y - 12358 = 18031 Answer: y = .............

Question 9:

Find the value of b such that Answer: b = ..............

Question 10:

The perimeter of a rectangle is 58cm and its width is 13cm less than its length. Its width is .......... cm.

Exam number 2: Cóc vàng tài ba

Question 1: Choose the straight angle:



a.



b.



c.



d.

Question 2:

Which is the product of 30 and 8?



a. 220



b. 240



c. 210



d. 230

Question 3:

The greatest even 2-digit number is ...........



a. 97



b. 96



c. 98



d. 99

Question 4:

When 47 is divided by 3, the remainder is ............



a. 2



b. 0



c. 3



d. 1

Question 5:

Choose the correct number fill in the blank: 2; 4; 12; 48; ......



a. 84



b. 144



c. 240



d. 96

Question 6:

If the perimeter of a square is 2800m then each of its side is ......... m.



a. 70



b. 600



c. 60



d. 700

Question 7:

The sum of two numbers is 76 and their difference is 22. The smaller number is ............



a. 27



b. 53



c. 50



d. 49

Question 8:

When N is divided by 12, the remainder is 9. When N is divided by 6, the remainder is .......



a. 2



b. 0



c. 4



d. 3

Question 9:

How many hours make up 2 weeks?



a. 186



b. 336



c. 363



d. 168

Question 10:

How many hours make up 14400 seconds?



a. 240



b. 4



c. 2



d. 120

Exam number 3: Sắp xếp theo thứ tự tăng dần

Answer: (12) < ..... < ...... < ...... < ........ Nhập số thứ tự của các ô vào chỗ (....) cho thích hợp để được dãy số tăng dần

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 6 NĂM 2015 – 2016

Exam number 1: Choose 2 consecutive cells which have the same or equal value.

Answer: (1) = .........; (2) = ..........; (3) = ...........; (4) = ...........; (6) = ..........; (7) = ..........; (10) = ...........; (11) = ..........; (12) = ..........; (13) = ............ Điền số thứ tự của các ô vào chỗ chấm cho thích hợp để được các cặp giá trị bằng nhau.

Exam number 2:

Question 1: Convert 40kg = ...........g.

Question 2:

Convert: 9050000g = .............. kg.

Question 3:

Multiply 95 x 100 = ...............

Question 4:

Multiply: 27635 x 6 = .............

Question 5:

If x : 100 = 7200 then x = ................

Question 6:

Calculate: 7 x 3109 + 3 x 3109 = ..............

Question 7:

Sophia has three $100 notes. She also has six $10 notes and ten $2 notes. How much money does she have in total? Answer: She has $............

Question 8:

One pack of pencils has 11 pencils. Two other packs have 15 pencils each. The total number of pencils in these three packs is .............. pencils.

Question 9:

Find the value of x such that x : 7 = 3152 Answer: x = ................

Question 10:

The sum of two numbers is 372 and their difference is 102. The smaller number is ...................

Exam number 3:

Question 1: Multiply: 147 x 20 = ............



a. 1470



b. 147



c. 294



d. 2940

Question 2:

Which of following is true?









a. 30dm2 = 3000cm2 b. 5m2 = 50dm2 c. 40m2 = 4000cm2 d. 20dm2 = 2000cm2

Question 3:

Which of following is the greatest?









a. 50cm2 b. 401cm2 c. 4dm2 10cm2 d. 4dm2

Question 4:

If z : (20 - 1) = 38 then z = ..................



a. 272



b. 277



c. 727



d. 722

Question 5:

Peter earns $15214 per month and Jane earns $14786 per month. How much do they earn per 10 months together?



a. $300



b. $300000



c. $30000



d. $3000

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 7 NĂM 2015 - 2016

Exam number 1: Fill in the blank with the suitable number.

Question 1: Mary has 30 packs of candies. There are 11 candies in each pack. Mary has .......... candies in all.

Question 2:

Calculate: 2015 + 99 x 2015 = ...........

Question 3: Convert: 3m2 = ..............cm2

Question 4:

42 x 11 = ...........

Question 5: 300m2 + 400m2 = .............. dm2

Question 6:

The sum of two numbers is 156 and their difference is 12. What is the smaller number? Answer: ...............

Question 7:

The value of M = (125 x 4 + 500 : 2) x 100 is ............

Question 8:

The clock shows the last time Anna saw before she sleeps. She wakes up at 6:15am. How long did she sleep? Answer: She slept ............. minutes.

Question 9:

If the number 386a is divisible by 6 then a = ............

Question 10:

Arrange the digits in the number 371059 to form a new number with the greatest value. Answer: ..............

Exam number 2:

Question 1: Calculate: 205 x 3 + 205 x 7 = ..............



a. 2050



b. 2005



c. 20050



d. 20500

Question 2:

The average of 57 and M is 43. The value of M is ..................



a. 14



b. 29



c. 71



d. 35

Question 3:

Which of following number is divisible by 9?



a. 63636



b. 9991



c. 54720



d. 36363

Question 4: 13000cm2 = ............ dm2. The correct number fill in the blank is .............



a. 1300



b. 130000



c. 13



d. 130

Question 5:

John forgot the number of people at volleyball game. He remembers that the number had a digit 5 in the tens place. Which of following number could John be thinking of?



a. 5312



b. 1253



c. 1325



d. 1523

Question 6:

Orange Hill is 578 feet high. Banana Hill is 235 feet high. How many feet higher is Orange Hill more than Banana Hill?



a. 344 feet



b. 434 feet



c. 813 feet



d. 343 feet

Question 7:

If the cost of 5kg of coffee is $160 then the cost of 8kg of coffee is ............



a. $248



b. $264



c. $256



d. $250

Question 8:

Write the following as a numeral: nine hundred thousand



a. 90000



b. 990000



c. 9900



d. 900000

Question 9:

John has 15 candies and Tom has 31 candies. How many candies does Tom need to give to John so that each boy will have the same number of candies?



a. 4



b. 16



c. 8



d. 10

Question 10:

Choose the best answer to fill the "??" mark.



a. a



b. b



c. c



d. d

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 8 NĂM 2015 - 2016

Exam number 1: Đỉnh núi trí tuệ

Question 1: If x/7 = 45/63 then x = .............

Question 2:

An even number M is divisble by 5 if the last digit of M is ............

Question 3:

Find the area of the parallelogram below:

Answer: .............cm2

Question 4:

Calculate: 6520 : 326 = .............

Question 5:

Katie has 300 cakes. She gives 12 of them to each of five her friends. How many cakes are left over Answer: ..........cakes.

Question 6:

Find the value of b such that the number 73b4 is divisible by 9? Answer: b = .............

Question 7:

The sum of two numbers is 124 and their difference is 36. What is the value of the larger number? Answer: ..........

Question 8:

One pack of pencils has fifteen pencils. Four other packs have twenty pencil each. What is the total pencils in these five packs? Answer: ......... pencils.

Question 9:

The weight of green box is four times the weight of red box. Green box is 9kg heavier than red box. The weight of green box is ........... kg.

Question 10:

The sum of all natural numbers that are smaller than 500 and divisible by 5 is ............

Exam number 2:

Tìm cặp bằng nhau

Answer: (1) = ......; (2) = ......; (3) = ......; (4) = ......; (5) = .....; (6) = ....; (7) = .....; (8) = ........; (16) = ........; (19) = ...... Nhập số thứ tự của các ô vào chỗ chấm để được các cặp giá trị bằng nhau

Exam number 3: Vượt chướng ngại vật

Question 1: The area of this parallelogram is ...........cm2.



a. 48



b. 20



c. 28



d. 35

Question 2:

What is this fraction in the simplest terms? 27/36 = ..........



a. 9/4



b. 2/3



c. 3/4



d. 4/9

Question 3:

Which of the following lists the fractions 1/9; 2/7; 4/16; 2/9; and 1/8 in order from the least to greatest?



a. 1/9 < 2/9 < 1/8 < 4/16 < 2/7



b. 1/9 < 2/9 < 1/8 < 2/7 < 4/16



c. 1/9 < 1/8 < 2/9 < 4/16 < 2/7



d. 1/9 < 1/8 < 2/9 < 2/7 < 4/16

Question 4:

Peter is taller than Edward but shorter than Jacob. Charlie is taller than John but shorter than Peter. Who is the tallest?



a. Jacob



b. Peter



c. Charlie



d. Edward

Question 5:

The total weight of 3 apples is equal to that of 4 bananas, and the total weight of 5 bananas is equal to that of 6 oranges. How many apples have the same total weight as 24 oranges?



a. 18



b. 16



c. 12



d. 15

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 9 NĂM 2015 - 2016

Exam number 1: Fill in the blank with the suitable number

is equal to .............. Question 1: The expression

Question 2:

What number should be placed in the box to make?

Answer: ...........

Question 3:

What is the remainder when 65870 is divided by 8? Answer: ..............

Question 4:

Mya has 10000 dollars in bills of 40 dollars.How many 40 dollars- bills does she have? Answer: ............... 40 dollars- bills.

Question 5:

A large box of candies and a small box of candies together cost 13 dollars. If the large box costs 5 dollars more than the small box, what is the price of the small box of candies? Answer: ............. dollars.

Question 6:

Six students had an orange eating contest. The graph shows the number of oranges eaten by each student. Mary ate the fewest oranges and Jack ate the greatest. How many more oranges did Jack eat than Mary?

Answer: ............. oranges.

Question 7:

The numbers from 1 to 1000 are written. How many of these numbers have at least two digits 5? Answer: .............. numbers.

Question 8:

Five students do an exam with a maximum score of 50. The scores of four of the students are 41, 44, 46 and 49. The average of five students’ scores is the same as the score of the fifth student. The score of the fifth student is .............

Question 9:

Five years ago, Sarah was 7 years old. Two years later, she will be ............. years old.

Question 10:

A fraction is equal to . The sum of its denominator and its numerator is 91. What is the difference between the denominator and numerator of this fraction? Answer: ..............

Exam number 2: Đi tìm kho báu

Question 1: Nick has 3/5 of a dollar and Emma has 3/10 of a dollar. Together they have ………….



a. $6/10



b. $8/10



c. $9/10



d. $15/10

Question 2:

The value of 1/12 : 1/8 = …………. (Write your answer by fraction in the simplest form)

Question 3:

The symbol is evaluated as 4 x 7 – 3 x 6 = 10.

is evaluated as 29 then the number that should be replaced in the question If mark is ……………

Question 4: The are of a rectangular garden is 36m2. Its has a length of 9m. Its perimeter, in metres, is ……………..

Question 5:

Last year, Bob’s age is divided by 7. This year, his age is divisible by 5. In how many years will Bob be 27 years old? Answer: ……….. years.

Exam number 3: Cóc vàng tài ba

Question 1: The value of 40 + 60000 + 500 + 30 is ………….



a. 65070



b. 65430



c. 60570



d. 60543

Question 2:

The average of the numbers 21, 23, 25 and 27 is ……………….



a. 22



b. 23



c. 24



d. 26

Question 3:

The perimeter of a rectangular is 3 times its length. If the perimeter is 120cm, the area of the rectangle is …………



a. 3200cm







b. 800cm c. 800cm2 d. 3200cm2

Question 4:

Which number should be replace the blank:



a. 32



b. 96



c. 48



d. 24

Question 5:

Sophia plants ten trees every three minutes. If she continues planting at the same rate, how long will it take she to plant 250 trees?



a. 5/4 h



b. 25h



c. 3/4 h



d. 75h

Question 6:

Anna scored 325 points during the badminton season. If her average point was 13 per game, how many games did she play?



a. 25



b. 13



c. 26



d. 14

Question 7:

If a machine produces 90 items in one minute, how many items would it produce in 20 second?



a. 180



b. 20



c. 30



d. 60

Question 8:

The digits 1, 2, 3, 4, 5 and 6 are each placed in one of the boxes so that the resulting product is correct. If each of the six digits is used exactly once, the digit represented by’?” is ………….



a. 6



b. 2



c. 3



d. 4

Question 9:

The average of five different natural numbers is 4. If the different between the largest and smallest of these numbers is as large as possible, what is the average of the other three numbers?



a. 5



b. 2



c. 3



d. 6

ĐỀ THI VIOLYMPIC TOÁN TIẾNG ANH LỚP 4 VÒNG 10 NĂM 2015 - 2016

Exam number 1: Choose the most suitable answer in 4 available answers.

Question 1:

The value of expression: is ..................



a. 1008



b. 4007/2016



c. 504



d. 2017/2016

Question 2:

The area of the following rhomus is ............









a. 6cm2 b. 12cm2 c. 120cm2 d. 60cm2

Question 3:

Which of following numbers is smaller than 55606149 and larger than 55604896?



a. 55695346



b. 55614186



c. 55605268



d. 55601982

Question 4:

Anna bought 40 jellybeans. Which statement is incorrect?



a. She can divide the beans equally into five groups.



b. She can divide the beans equally into groups of 2.



c. She can divide the beans equally into groups of 4.



d. She can divide the beans equally into three groups.

Question 5:

Bob chose a natural number and multiplied it by four. Which of following numbers could not be his answer?



a. 4846



b. 3756



c. 5924



d. 1736

Question 6:

Suppose all counting numbers are arranged in columns as shown at the right. Under what letter will the number 2016 appear?



a. F



b. C



c. E



d. B

Question 7:

Given five numbers, the average of two numbers is 17 and the average of the other three numbers is 12. The average of all these number is.............



a. 5/2



b. 29



c. 14



d. 29/2

Question 8:

In the following expression: 20 - 16 + 7 : 36 x 12, if "+" means "x"; "-" means "+"; ":" means "-" and "x" means ":" the its value is ..........



a. 82/3



b. 124



c. 19/3



d. 129

Question 9:

Donald Trump has 19 grandchildrens, all of different ages. Anna is the eldest. The sum of ages of all grandchildren is 190. At least how old is Anna?



a. 24



b. 20



c. 25



d. 19

Question 10:

A square floor is tiled with congruent square tiles. The tiles on the two diagonals of the floor are black. The rest of the tiles are white. If there are 201 black tiles then the total number of white tiles is ............



a. 10000



b. 9799



c. 10203



d. 9600

Exam number 2: Fill in the blank with the suitable number

Question 1: The following chart shows the number of fruits in a shop. There are ............ more oranges than peaches.

Question 2:

Fill the missing number in the blank. 44444 = 40000 + 400 + ............. + 4

Question 3:

The average of 4, 8, and 13 is 8. The value of is .............

Question 4:

How many zero digits are there in ten million? Answer: ...............

Question 5:

The sum of two fractions and is a fraction with denominator of 12. Find its numerator. Answer: ...................

Question 6:

Three pumpkins are weighed in pairs in all possible ways. The weights of all these pairs are 8kg, 9kg and 11kg. How much does the lightest pumpkin weight? Answer: .............. kg.

Question 7:

It takes Jack 42 minutes to cut a long log of wood into seven pieces. How long will it take him to cut that log of wood into nine pieces? Answer: .................. minutes.

Question 8:

The floor of a rectangular room is covered with square tiles. The room is 24 tiles long and 16 tiles wide. The number of tiles in the outer border of the floor is ...............

Question 9:

There are 3 children in a family, Jack, Mary and Peter. Mary can clean the house for 1 hour. Jack can do the same job for 2 hours and Peter needs 6 hours. If they do the job together then they need ........ minutes.

Question 10:

MNPQ is a square that is made up of two identical rectangles and two squares of area 9cm2 and 16cm2. The area of the square MNPQ is ............ cm2.

Exam number 3: Vượt chướng ngại vật

Question 1: What fraction of the circle is colored?

Answer: ........... (Write your answer in simplest form)

Question 2:

The four - digit number 5BB1 is divide by 9. The value of B is ..........

Question 3:

Which of the following diagrams is different from the others?



a. Figure B



b. Figure D



c. Figure C



d. Figure D

Question 4:

In a restaurant, there are 17 tables, each with 3, 4 or 6 chairs. The tables with 3 or 4 chairs can accommodate 44 people. The restaurant can accommodate 74 people. How many tables are there with 3 chairs? Answer: ........ tables.

Question 5:

Bella thinks of two consecutive numbers in the range 1 to 6. She tells Alice one of the numbers and Jack the other. Alice and Jack have the following conversation: Jack: I don't know your number. Alice: I don't know your number, too. Jack: Now I know! The pair of numbers which Bella think of could be ..............



a. 3 and 4



b. 4 and 5



c. 2 and 3



d. 5 and 6