Đề luyện tập TIMO Khối 4

 PRACTICE PAPER 
 Logical Thinking / Tư duy logic 
1. It requires 21 minutes to cut a pipe into 4 sections. If the time required to cut into 
 each section is the same, how many minute(s) is / are required to cut a pipe into 8 
 sections? 
 Require: Cần; Minutes: Phút; Pipe: Ống nước; Sections: Phần; Time: Thời gian; The same: 
 Giống nhau. 
2. There are a total of 29 vehicles in a parking area includes motorbikes and cars. Given 
 that there are 92 wheels in total. How many cars are there? 
 Total: Tổng số; Vehicles: Xe; Parking area: Khu vực đỗ xe; Includes: Bao gồm; Motorbikes: Xe 
 máy; Cars: Xe ô tô; Wheel: Bánh xe. 
3. What is the value of the number to represent “?” in the following sequence? 
 Value: Giá trị; Number: Số; Represent: Biểu diễn; Sequence. Dãy số. 
 1, 1, 6, 16, 31, ? , 76, 106,  
4. Today is Tuesday. Which day of the week was it 100 days ago? 
 Sunday: Thứ Ba; Day of the week: Thứ trong tuần; Ago: Trước. 
5. Michael chose a number, multiplied it by 7, added 12, divided the result by 4, added 
 1, and multiplied the result by 4. His final answer was the smallest 3-digit number. 
 What number did Michael choose? 
 Multiplied: Nhân; Added: Cộng; Divided: Chia; Smallest 3-digit number: Số nhỏ nhất có 3 
 chữ số. 
 Arithmetic / Số học 
6. Find the value of 2 + 13 + 24 + 35 +  + 178. 
 Value: Giá trị. 
7. Using the method of SSS=−2 , find the value of 4+ 8 + 16 + 32 + + 4096 . 
 Method: Phương pháp; Value: Giá trị. 
8. Find the value of 25 18 36  5. 
 Value: Giá trị. 
9. Find the value of 23 7 − 39  7 + 46  7 − 16  7 . 
 Value: Giá trị. 
10. Find the value of 20 28 − 20 36 + 20 18 . 
 Value: Giá trị. 
 1 19. The square below is cut into 5 square pieces and 1 rectangular piece. If the perimeter of 
 the original square is 120cm, find the area of the rectangular piece in cm2. 
 Square pieces: Mảnh hình vuông; Rectangular piece: Mảnh hình chữ nhật; Perimeter: Chu vi; 
 Area: Diện tích. 
20. How many rectangle(s) is / are there in the figure below? 
 Rectangles: Hình chữ nhật; Figure: Hình vẽ. 
 Combinatorics / Tổ hợp 
21. How many 2-digit number(s) is / are there such that the number contains digit “7” 
 and no digits are repeated? 
 2-digit numbers: Số có 2 chữ số; Contains: Chứa; Digit: Chữ số; Repeated: Lặp lại. 
22. How many 3-digit number(s) is / are there so that the sum of digits is 6? 
 3-digit numbers: Số có 3 chữ số; Sum of digits: Tổng các chữ số. 
23. In how many ways can we arrange 5 friends in a row so that Anna always stand at 
 either end of the line? 
 Ways: Cách; Arrange: Sắp xếp; Row: Hàng; Stand: Đứng; Either end of the line: Đầu hàng 
 hoặc cuối hàng. 
24. Choose 3 digits, without repetition, from 0, 1, 4, 7, 8 to form 3-digit numbers. How 
 many even number(s) is / are there? 
 Choose: Chọn; Digits: Chữ số; Without repetition: Không lặp lại; 3-digit numbers: Số có 3 
 chữ số; Even numbers: Số chẵn. 
25. Numbers are drawn from 40 integers 6 to 45. At least how many number(s) do we 
 need to draw to ensure that there are two numbers whose sum is 30? 
 Drawn: Được chọn ra; Integers: Số nguyên; At least: Ít nhất; Ensure: Chắc chắn; Sum: Tổng. 
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