De kiem tra thang 8 lop 50

<span class='text_page_counter'>(1)</span>Lớp trực tuyến toán Tiếng Anh BÀI KIỂM TRA THÁNG 8 thầy Đào Chí Mạnh ( thời gian: 40 phút) HS chỉ ghi đáp số cho mỗi bài toán dưới đây. Exercise 1. Let fraction 28/35. If both denominator and numerator of this fraction are decreased by x units then this fraction will equal 3/4. The value of x is ......... Exercise 2. Tom has 1/3 pizza left in the fridge. He eats ¼ of it for his breakfast. What fraction of the original pizza does he have left for lunch? Answer: ………………. Exercise 3. The quotient of two numbers is 2 and their product is 100. Find the sum of the two numbers. Answer: The sum is………….. Exercise 4. There are 38 students in the class 5A. The students can be sit at the 11 tables with no empty seats. There are small table for 3 students and large table for 4 students. How many small tables and large tables in the class? Answer: There are……….small tables, ………….large tables. Exercise 5. Bella has 30 candies. Alice has 5 candies fewer than Bella. Sara has 5 candies more than Bella. How many candies do they have altogether? Answer: They have .......... candies altogether. Exercise 6. I have two digits in the decimal part. I am greater than 75 but less than 80 What least possible number am I? Answer: ............ Exercise 7. There are 25 rows of seats in a hall, each row having 30 seats. If there are 680 people seated in the hall, at least how many rows have an equal number of people each?... Answer: ............ Exercise 8. Nice evening for everyone! The bus will take one hour, then the train take three and a half hours morethan the bus from Bella's house to her grandmother's house. Bella need half an hour to change between them.How long will the whole journey take?... Answer: ............ Exercise 9. Every morning Kevin has to reach school by 8am. If he travels at 70 metres per minute, he would arrive 10 minutes earlier. If he travels at 60 metres per minute, he would arrive 8 minutes earlier. Given that he leaves home for school after 7 am, find the exact time he leaves for school.... Answer: ............ Exercise 10. This year, Mai's mother is four times as old as Mai. Four years ago, Mai's mother was thirty years old more than Mai. This year, Mai is .......... years old. Answer: .............

<span class='text_page_counter'>(2)</span>

<span class='text_page_counter'>(3)</span>