luyện toán seamo cho HS lớp 7.8

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Nguồn:
Người gửi: Nguyễn Thị Thu Hường
Ngày gửi: 08h:08' 27-09-2021
Dung lượng: 119.6 KB
Số lượt tải: 44
Nguồn:
Người gửi: Nguyễn Thị Thu Hường
Ngày gửi: 08h:08' 27-09-2021
Dung lượng: 119.6 KB
Số lượt tải: 44
Số lượt thích:
0 người
Phần 3:
Q1. 24 4- digit number can be formed by using 1,3,5 and 7, with each digit being used exactly one each time. Find the average of these 24 numbers?
Q2. Evaluate
Q3. Simplify
Phần 4:
Paper A: How many 5- digit numbers are greater than 40000 that ues the digits 1,2,3,4 and 5, and the digits cannot be repeated?
Paper B: At an exhibition, an adult entry ticket costs $4 while 2 child entry tickets cost $1. If 100 tickets were sold and a total of $120 was collected, how many children attended the exhibition?
Paper C: Evaluate
Paper D: Factorize
Paper E: Let a,b and c be real numbers such that and . Find the value of
Phần 5:
Paper B: is divisible 3, 4 and 5. Find the smallest value of
Paper C: Find the missing number of the sequence is 4,6,10,14,22,26,34,( ),46,…
Paper D: Solve the equation given that
Phần 6:
Paper B:In a new operation
Find value of
Paper C: A new operetion is defined as
Find the value of m in
Paper D: Given that a,b,c>0, and , arrange a,b,c in ascending order
Phần 7:
Paper B: Find the value of
Paper C: denotes smallest whole number that is not a factor of n.
For example . Find the value of
Paper D: If the positive numbers a,b,c satisfy , solve the equation in x:
Phần 8:
Paper A: When we write 72 as a product of two whore numbers, A and B, what is the smallest value of A +B?
Paper B: In the pentagon below, AB = BC = CD = DE = AE, find ?
B
A C
y
E D
Paper C: Evaluate:
Paper D: a,b are positive integers. Given that b takes the minimum value, find the fraction satisfying
Phần 9:
Paper A: Jordan has 37 apples and Jonathan has 15 apples. How many apples does Jordan at teast have to give to Jonathan to make them have a 4-apple difference?
Paper B: Whats is the sum of first 68 digits 358421358421358421…
Paper C: Find the number of 4-digit palindromes which are a multiple of 11
Paper D: Given that a night- angled triangle has a perimeter of 56cm and anarea of 84 , find the lengths of its 3 sides
Phần 10:
Paper A: The letters A, B, C and D represent elther 1,2,3,4 or 5, which cnnot be repeated. What is the number that is not used?
Paper B: Find the missing number
5 4 ?
4 6 3 5 2 4
7 12
14
Paper C: At amovie premiere, a queue starts forming at the box office before it opened at 1p.m. From 1p.m onwards, a fixed number of people joined the queue every minute. If 7 counters opens at the box office, the queue could be cleared in 14 minutes. If 9 countes were open, the queue would be cleared in 10 minutes. It 12 counters open. How lonh wouid it take to clear the queue?
Paper D: In , and the point D lies on the midpoint of AC. Prove that
Phần 11:
Paper A: Stady the pattern
1+2+1=4
12+3+2+1=9
1+2+3+4+3+2+1=16
1+2+3+4+5+4+3+2+1=25
Then, use a simple method to compute
1+2+3+…+7+8+7+…+3+2+1
Paper C: The following figure shows a circle inscribed with in a right- angled triangle. Determine the radius of the circle
5cm
12cm
Paper D: Solve the quadratic equation:
Phần 12:
Paper A: Observe the sequence below. How many digits have been used altogether?
1,2,2,3,3,3,4,4,4,4,…,10,10,10,10,10,10,10,10,10,10
Paper C: It is known , and . Arrange the 3 number in increasing
Q1. 24 4- digit number can be formed by using 1,3,5 and 7, with each digit being used exactly one each time. Find the average of these 24 numbers?
Q2. Evaluate
Q3. Simplify
Phần 4:
Paper A: How many 5- digit numbers are greater than 40000 that ues the digits 1,2,3,4 and 5, and the digits cannot be repeated?
Paper B: At an exhibition, an adult entry ticket costs $4 while 2 child entry tickets cost $1. If 100 tickets were sold and a total of $120 was collected, how many children attended the exhibition?
Paper C: Evaluate
Paper D: Factorize
Paper E: Let a,b and c be real numbers such that and . Find the value of
Phần 5:
Paper B: is divisible 3, 4 and 5. Find the smallest value of
Paper C: Find the missing number of the sequence is 4,6,10,14,22,26,34,( ),46,…
Paper D: Solve the equation given that
Phần 6:
Paper B:In a new operation
Find value of
Paper C: A new operetion is defined as
Find the value of m in
Paper D: Given that a,b,c>0, and , arrange a,b,c in ascending order
Phần 7:
Paper B: Find the value of
Paper C: denotes smallest whole number that is not a factor of n.
For example . Find the value of
Paper D: If the positive numbers a,b,c satisfy , solve the equation in x:
Phần 8:
Paper A: When we write 72 as a product of two whore numbers, A and B, what is the smallest value of A +B?
Paper B: In the pentagon below, AB = BC = CD = DE = AE, find ?
B
A C
y
E D
Paper C: Evaluate:
Paper D: a,b are positive integers. Given that b takes the minimum value, find the fraction satisfying
Phần 9:
Paper A: Jordan has 37 apples and Jonathan has 15 apples. How many apples does Jordan at teast have to give to Jonathan to make them have a 4-apple difference?
Paper B: Whats is the sum of first 68 digits 358421358421358421…
Paper C: Find the number of 4-digit palindromes which are a multiple of 11
Paper D: Given that a night- angled triangle has a perimeter of 56cm and anarea of 84 , find the lengths of its 3 sides
Phần 10:
Paper A: The letters A, B, C and D represent elther 1,2,3,4 or 5, which cnnot be repeated. What is the number that is not used?
Paper B: Find the missing number
5 4 ?
4 6 3 5 2 4
7 12
14
Paper C: At amovie premiere, a queue starts forming at the box office before it opened at 1p.m. From 1p.m onwards, a fixed number of people joined the queue every minute. If 7 counters opens at the box office, the queue could be cleared in 14 minutes. If 9 countes were open, the queue would be cleared in 10 minutes. It 12 counters open. How lonh wouid it take to clear the queue?
Paper D: In , and the point D lies on the midpoint of AC. Prove that
Phần 11:
Paper A: Stady the pattern
1+2+1=4
12+3+2+1=9
1+2+3+4+3+2+1=16
1+2+3+4+5+4+3+2+1=25
Then, use a simple method to compute
1+2+3+…+7+8+7+…+3+2+1
Paper C: The following figure shows a circle inscribed with in a right- angled triangle. Determine the radius of the circle
5cm
12cm
Paper D: Solve the quadratic equation:
Phần 12:
Paper A: Observe the sequence below. How many digits have been used altogether?
1,2,2,3,3,3,4,4,4,4,…,10,10,10,10,10,10,10,10,10,10
Paper C: It is known , and . Arrange the 3 number in increasing
 








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