LUYỆN VIOLYMPIC TIẾNG ANH LỚP 4  (2021-2022) ĐỀ 2

Câu 1: what is the largest possible number that can be written using the digits 4, 0, 7, 6 (use each digit only once)

Câu 2: Read number:  7640:......................................................................................

Câu 3: Ali earns 5$ each day walking his aun’t dog. He is saving to buy a moutain bike helmet for 28$. At least, how many days will Ali need to work to buy his moutain bike helmet?

Câu 4: The perimeterof the square is 80dm. The are of  the aquare is .....m2?

Câu 5: Andy needs to cut a melon. At least how many cuts are required to ensure he can get 12 equal parts?

Câu 6: How many 2-digit even numbers can you make by using 5; 0; 2; 7?

Câu 7: There are 8 blue balls, 18 red balls and 5 green balls in a bag. At least how many should be drawn at random to ensure there are red balls?

Câu 8: A number consists of two digits. The digit in the tens place is twice the digit in the units place. If 18 is subtracted fromthe number, the digits are reversed. Find the number?

Câu 9: Given that three numbers a, b, c satisfy:

    a58b  +  3526   =  81c9  . Then a x b x c =

Câu 10: A group of 9 students shared a box of pen. After they had taken 7 pens each, there were 6 pens left. How many pens were at first?

Câu 11: Anna sells an umbrella for $12 on a rainy day and $18 on a sunny day. How much more will cost to buy 3 umbrellas on a sunny day than on a rainy day?

Câu 12: Gina is 2 years 3 months older than her sister. Her sister is 7 years 8 months old. How old is Gina? (Express your answer in year and months)

Câu 13: Mark has 49 stamps, Janes has 298 more than Mark. Alvin has 39 stamps less than Janes. How many stamps do Janes and Alvin have altogether?

Câu 14: The sum of 2 number is 807. If one of the number is 399, what is the other number?

Câu 15: Tracey bought 6 boxes of oranges. There were 48 oranges in each box. She repalaced them and put 9 oranges in 1 basket. How many baskets would she need to put all the oranges?

Câu 16: Alice’s Pet rabbit weighs 500g. Jane’s Pet dog is ten times as heavy as Alice’s Pet rabbit. What is the weight of the dog?

Câu 17: Find the difference between the fourth and the first number in the sequence: 13; 14; 15; 16; 17; 18.

Câu 18: Mary had 69 boxes of chocolate left after she had sold 110 boxes. If there were 6 pieces of chocolate in each box, how many pieces of chocolate had she at first?

Câu 19: How many even number are there between 4006 and 4022?

Câu 20: Jaya is 19 years old. Six years ago her mother was three times as old as her. How old is her mother now?

Câu 21: Mr Nam is twice as old as his daughter. If he is 50 years old now, how old will his daughter be in ten years’ time?

Câu 22: The number of pens is twice the number of pencils in a stationery shop. The number of pencils is 6 times the number of  erasers in the shop. How many times is the number of pens as many as the number of erasers?

Câu 23: The smallest 5 - digit odd number that can be formed using all the digits 5; 0; 1; 9 and 3 is……
       
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