Calculate: Exam number 3: Find the blank with the suitable number Note: write decimal number with the comma" between number part and fraction part.. Question 3: The perimeter of a circle[r]
(1) VONG Exam number 1: Đi tìm kho báu Question 1: 185,4 - 5,36 = Question 2: Calculate: 124,7 : 100 + 45,18 = Question 3: Look at these numbers 5,586 0,293 0,675 5,595 Two numbers in the box have a sum of 6,261 are Question 4: Brick is $28,25 per 25kg How much is 350kg of brick? Answer: Question 5: If X is a natural number and 0,5 x X > 8,3 then the smallest value of X is Exam number 2: Choose consecutive cells which have the same or equal value (Tìm cặp nhau) Answer: (1) = ; (2) = ; (3) = .; (4) = .; (5) = ; (6) = ; (7) = ; (8) = ; (11) = ; (15) = Nhập số thứ tự các ô vào chỗ ( ) cho thích hợp để các cặp giá trị Exam number 3: Fill in the blank with the suitable number (Note: write decimal number with the comma between number part and fraction part Ex: 0,5) Question 1: Find x such that 2,89 < x < 11,01 and x are even natural numbers Answer: Question 2: 2,3m + 6,8m = dm Question 3: 7m2 4dm2 = cm2 Question 4: 123004,64 : 10000 = Question 5: 15% of 370kg = g (2) Question 6: 2m2 3dm2 + 1m2 35cm2 = cm2 Question 7: The perimeter of the star equals the perimeter of the regular hexagon Each side of the hexagon is 16cm long Each side of the star is cm long Question 8: Jane bought jelly beans She gave 9/11 of them for Jack If Jane kept 36 jelly beans then she bought jelly beans in total Question 9: Tina works 17 hours a week (Monday to Friday) Last week she worked 4,5 hours on Monday; hours on Tuesday; 2,2 hours on Wednesday and 1,5 hours on Thursday She worked minutes on Friday Question 10: The value of 2,73 + 4,23 + 5,73 + 7,23 + 8,73 + 10,23 + 11,73 + 13,23 +14,73 + 16,23 + 17,73 is VONG Exam number 1: Choose the most suitable answer in available answers (Cóc vàng tài ba) Question 1: Choose the calculation that has the greatest result a 125,7 : + 14,3 b 365,5 : - 17,8 c 59,8 : + 26,13 d 196,4 : - 7,07 Question 2: Peter counts his heart rate He counts beats per seconds on average How many beats per minute does Peter count? Answer: Peter counts beats per minute Question 3: Which fraction is equal to 17,5%? Question 4: Mia wants to buy apple Which is the best buy? a 7kg of apples for $30,38 b 5kg of apples for $21,5 c 6kg of apples for $26,1 d 4kg of apples for $17,32 Question 5: The product: 20 x 21 x 22 x x 40 has digit Question 6: Which shape is colored more than 50% in green? Question 7: If number A is increased by 60% then it will equal number B How much percentage will B be decreased by to equal A? Question 8: Find the smallest number that is times the sum of its digits? Answer: This number is Question 9: (3) Calculate: Choose the correct answer: Question 10: How many fractions equal 1/5 and have denominators of - digit numbers? Exam number 2: Your car has to pass obstacles to finish In order to overcom each obstacle, you have to answer correctly one of three problems in that obstacle (Vượt chướng ngại vật) Question 1: If and n is a natural number then n = Question 2: The perimeter of the shape is cm Question 3: Find X if X x 8,6 - 5,2 x X - 11,06 = 5,94 Answer: X = Question 4: Calculate: 5,5 x (3,5 - 1,5) + 1,5 = Question 5: Calculate: Exam number 3: Find the blank with the suitable number (Note: write decimal number with the comma" between number part and fraction part Ex: 0,5) Question 1: 5,136m3 = cm3 Question 2: 47/250 dm3 = cm3 Question 3: The perimeter of a circle is 15,7dm Its area is cm Question 4: Jane bought a couch A couch costs 950 dollars She received a 30% discount How much of a discount did she get? Answer: She got dollars discount Question 5: The ratio of the number of girls to the number of boys in a classroom is : When 10 girls left the classroom, the ratio of the number of boys to the number of girls (4) became : How many students were in the classroom at first? Answer: There were students in the classroom at first Question 6: The area of a rectangle is 50m2 If it's length is increased by 10% and it's width is decreased by 20% then the area of new rectangle is .m Question 7: An aquarium is 8dm deep, 12dm long and 0,3m wide What is the volume of the aquarium in cubic centimeter? Answer: The volume of the aquarium is cm3 Question 8: The sum of all square's area in the following figure is 375cm The area of the biggest square is dm2 Question 9: At a party 60% of the boys are dancing with 80% of the girls How many people are dancing if there are 35 people? (A pair cludes only one boy and one girl) Answer: people are dancing Question 10: Look at the following figure AF/AB = 1/4; AE/AC = 1/3 If the area of triangle GBD is 270m2 then the area of the triangle GCD is m VONG 2016 Exam number 1: Đi tìm kho báu Question 1: There are 40 students in Mrs Brown's class 25% of her students received a B on the test How many students received a B? Question 2: What is the product of 3.05 and 2.8? Question 3: A clothing shop is having a 40% off sale How much would Jane have to pay for a $30 sweater with a 40% discount? Question 4: If a pen costs $1.75 and an eraser costs $0.85, which of the following is the cost of 10 erasers and pens? Question 5: (5) If the area of the rectangle ABCD is 60cm2 then the area of the trapezoid MNCD is cm2 Exam number 2: Tìm cặp Answer: (1) = ; (2) = .; (3) = ; (5) = ; (7) = ; (8) = .; (9) = ; (11) = ; (15) = ; (16) = Exam number 3: Fill in the blank with the suitable number Question The length of each edge of a cube is cm The surface area of the cube, in cm 2, is Question 2: At the beginning of the summer, Bob was 140 cm tall At the end of the summer, he measured his height again and discovered that it had increased by 5% Measured in cm, what was his height at the end of summer? Answer: cm Question 3: The number of centimetres in 7.05 metres is Question 4: Bella scores on six of her eight pictures The percentage of pictures that she does not score on is % Question 5: (6) A bag contains green marbles and red marbles only If the ratio of the number of green marbles to the number of red marbles is 1:4 then % of marbles are green Question 6: How many even numbers between and 100 are divisible by 5? Answer: There are numbers Question 7: Alice is going to the store One third of the way to the store, she stops to talk with Kelly She then continues for km and reaches the store How many kilometres does she travel? Answer: km Question 8: How many three-digit numbers are exactly 19 more than a two-digit number? Answer: numbers Question 9: In the 3×3 table shown, the numbers 2, and are placed so that each number occurs only once in each row and only once in each column The value of M + N is Question 10: How many different 3-digit whole numbers can be formed using the digits 4, 5, and 8, assuming that no digit can be repeated in a number? Answer: There are numbers VONG 10 Exam number 1: Question 1: Fill in the blank with suitable sign (>, =, <) Compare: 7,12 : 0,5 + 8,23 28,48 : + 4,12 : 0,5 Fill in the blank with the suitable number Question 2: If 144/17 x 34/12 < n < 169/34 : 13/68 and n is a natural number then n = Question 3: The ratio of the number of girl students to the number of boy students in a class is : and the number of boy students is 12 students more than the number of girl students There are students in this class Question 4: Find x if x is a natural number and 0,6 x 7,5 < x < 3,5 x 1,6 Answer: x = Question 5: 34m2 27cm2 + 27m2 20dm2 = dm2 Question 6: Divide 77 into three parts so that one is 150% of each of the other two The smallest number is Question 7: The sum of four consecutive number is 948 Find the greatest number Answer: The greatest number is (7) Question 8: One x x cube is painted, and then cut it into x x cubes How many of these cubes are painted? Answer: x x cubes are painted Question 9: Find n such that: 2/3 + 2/15 + 2/35 + + 2/n = 322/323 Answer: n = Question 10: Find K such that: Answer: K = Exam number 2: Choose the most suitable answer in available answers (Cóc vàng tài ba) Question 1: Find x such that The value of x is Question 2: Find the smallest number that the sum of its digits is 15 Answer: This number is Question 3: Calculate: 3,54 + 1,12 + 0,98 + 2,3 The result is Question 4: 15% of 1080kg = g Choose the correct number fill in the blank Question 5: What percentage of the area of the square is pink? Question 6: Now Peter's father is 36 years old and he is 11 years old years ago, Peter's father was six times as old as him The missing number is Question 7: If the sum of two number is 463 and there are eighteen odd numbers between these numbers then the less number is Question 8: The surface areas of a cube is 864cm2 The volume of this cubes is Question 9: Find y such that: Question 10: Find the last digit of A = 11 x 21 x 31 x x 71 + x 19 x 29 x x 89 Answer: The last digit of A is Exam number 3: Đi tìm kho báu (8) Question 1: Find X if X x 100 - 1,968 = 1,254 + 3,978 Question 2: 60% of km = 1230m Question 3: If x is a natural number and 4728/100 < x then the least value of x is Question 4: Peter wrote consecutive numbers from to 723 How many digits did he write? Answer: There are digits Question 5: The average of three numbers is 32 The second number is two times the first number and the third number is six units more than the second number The first number is (9)