De thi Violympic 5

Đề thi Violympic Toán Tiếng Anh lớp 5 Question 1: Choose the most suitable answer in 4 available answers... What is the smaller number?..[r]

Đề thi Violympic Toán Tiếng Anh lớp Question 1: Choose the most suitable answer in available answers Question 1.1: The value of 85 x 46 + 54 x 85 is  A 485  B 5464  C 8446  D 8500 Question 1.2: The area of the parallelogram below is cm2  A  B  C 28  D 14 Question 1.3: Add: 2/7 + 3/7 =  A 5/7  B 4/7  C 6/7  D 8/7 Question 1.4: Convert: 2km2 = m2  A 200 000  B 20 000  C 000  D 000 000 Question 5: Find x such that: x + 3/5 = 5/2  A 2/5  B 19/10  C 8/5  D 8/10 Question 1.6: The sum of two numbers is 79 and their difference is 13 What is the smaller number?  A 23  B 33  C 46  D 53 Question 1.7: Which image matchs the following fraction? 2/5  A  B  C  D Question 1.8: The perimeter of the square below is cm  A 25/81  B 41/9  C 9/9  D 20/9 Question 1.9: How many numbers between 65 and 121 are divisible by 8?  A 48  B  C  D Question 1.10: 2/5 of the trees in a garden is red apple trees Others are green apple trees There are 60 green apple trees How many apple trees are there in the garden altogether?  A 120  B 150  C 100  D 130 Question 2: Let's reach the intellectual peak by answering the questions Question 2.1: In 235468, the value of the digit in the hundreds place is: Question 2.2: 1/4 kg = .g The missing number is Question 2.3: The ratio of two numbers is : and their sum is 104 Find their difference Answer: Their difference is Question 2.4: The area of a square of side 5cm is cm2 Question 2.5: The greatest - digit number that divisible by 18 is Question 2.6: Calculate: + + + + 96 = Question 2.7: Look at this series: 62; 62; 50; 50; 38; 38; What number should come next? Answer: Question 2.8: What is 7/12 of 144? Answer: It's Question 2.9: Of the 28 goats on Jack's farm, 3/7 are white How many white goats are on the farm? Answer: There are white goats Question 2.10: Calculate: 3456 x = Question 2.11: Convert: 400000cm2 = .m2 The missing number is Question 2.12: There are forty pieces of fruits on the table Twenty four of them are oranges, others are apples How many pieces of fruits are apples? Answer: There are pieces Question 2.13: ./9 = 48/108 The missing number is Question 2.14: The perimeter of the parallelogram below is cm Write your answer in the simplest form Question 2.15: There are 35 men and a some of women in a meeting room The ratio of the number of women to the number of men is : How many women are there in the meeting room? Answer: There are women Question 2.16: The sum of odd numbers from 12 to 42 is Question 2.17: If 37a54b is divisible by 2; 3; and then a + b = Question 2.18: For every hours of work, John earns $136 If John works 30 hours, how much will he earn? Answer: $ Question 2.19: The sum of two numbers is the smallest 3-digit number and their difference is the smallest 2-digit number? The greater number is Question 2.20: The missing number is