58-2*3^n+4<=>2*3^n=54<=>3^n=27<=>n=3
hence:n=3
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âu 1:.810:88...Answer: The missing number is Câu 2:The fourth power of 3 is Câu 3:Find the number n such that 2016n1.Answer: Câu 4:What is the greatest remainder when a number divide by 9?Answer: Câu 5:Maria is 10 years old and her sister is 7 years old. In how many years time will their total age be 41 years?Answer: years.Câu 6:Anna is 1.53m tall. What is her height in centimeters?Answer: (cm)Câu 7:510x610_________10Câu 8:Find the last digit of 22016.Answer: The last digit of 22016 is Câu 9...
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âu 1:
.810:8=8...
Answer: The missing number is
Câu 2:
The fourth power of 3 is
Câu 3:
Find the number n such that 2016n=1.
Answer:
Câu 4:
What is the greatest remainder when a number divide by 9?
Answer:
Câu 5:
Maria is 10 years old and her sister is 7 years old. In how many years' time will their total age be 41 years?
Answer: years.
Câu 6:
Anna is 1.53m tall. What is her height in centimeters?
Answer: (cm)
Câu 7:
510x610=_________10
Câu 8:
Find the last digit of 22016.
Answer: The last digit of 22016 is
Câu 9:
Find the number n such that 58-2x3n=4.
Answer:
Fill in the blank with the suitable sign (>; =;<)
Câu 10:
Compare: 310_______95
Question 1:P is a prime number and a factor of 8. What is P?Answer: P Question 2:The greatest even factor of 62 is Question 3:The smallest multiple of 47 is Question 4:K is a prime number and a multiple of 43. What is K?Answer: K Question 5:The number 55 has factors.Question 6:In the following numbers, which has the most factors?Answer: Question 7:In the following figure, AN 5cm and AB 8cm. NB cm Question 8:Find the sum of all the factors of 19Answer: Question 9:Find such that .Answer: .Q...
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Question 1:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 2:
The greatest even factor of 62 is
Question 3:
The smallest multiple of 47 is
Question 4:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 5:
The number 55 has factors.
Question 6:
In the following numbers, which has the most factors?
Answer:
Question 7:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
Question 8:
Find the sum of all the factors of 19
Answer:
Question 9:
Find such that .
Answer: .
Question 10:
Find n such that n and n + 1 are factors of 40
Answer: n =
Question 1:The least common multiple of 330; 65; 15 is Question 2:Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.The composite numbers are (Write numbers in order from the least to the greatest and use ;)Question 3:The common factors of 18 and 27 are (Write numbers in order from the least to the greatest and use ;)Question 4:Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is Question 5:Find four integer numbers a,b,c,d such thata + b + c + d 1a + c + d 2a + b + d...
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Question 1:
The least common multiple of 330; 65; 15 is
Question 2:
Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.
The composite numbers are
(Write numbers in order from the least to the greatest and use ";")
Question 3:
The common factors of 18 and 27 are
(Write numbers in order from the least to the greatest and use ";")
Question 4:
Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is
Question 5:
Find four integer numbers a,b,c,d such that
a + b + c + d = 1
a + c + d = 2
a + b + d = 3
a + b + c = 4
Answer: (a;b;c;d)=()
Question 6:
Find a four-digit natural number that is less than 2015.If the thousands digit is erased,the number will be decreased by 9 times.
Answer:The number is
Question 7:
Calculate: 1×2+2×3+⋯+100×101=
Question 8:
The term of the expression A=1-7+13-19+25-31+⋯ is
Question 9:
Given the expression A= ...
Find the value of n such that 2A+3=
Answer: n=
Question 10:
A natural number has six digits and the units digit is 4.If the units digit is moved to the first row then the number will be increasedby 4 times.The number is
Given the expression \(A=3+3^2+3^4+...+3^{100}\)
Find the value of n such that \(2A+3=3^n\)
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Question 1:
If then n: n =
Question 2:
If then 0:p=
Question 3:
If then n =
Question 4:
Calculate: 427 – (127+120) =
Question 5:
Find x such that 1014 : (124 – x) =13
Answer: x =
Question 6:
Find x such that
Answer: x=
Question 7:
If x : 7 = x : 6 then x =
Question 8:
999 divided by 3 is the same as 9 times M. Find M
Answer: M =
Question 9:
Find x such that
Answer: x=
Question 10:
When X divided by 234, the remainder is the greatest possible remainder and the quotient is 5.
The value of X is
Câu 1:9 is the squared of Câu 2:What is the greatest remainder when a number divide by 9?Answer: Câu 3:.Câu 4:Câu 5:100 pupils participate a drawing competition. 58 of them are girls. What percentage of the pupils who participate the competition are boys?Answer: %Câu 6:The value of such that .Answer: Câu 7:Anna is 1.53m tall. What is her height in centimeters?Answer: (cm)Câu 8:The value of such that Answer: Câu 9:Find the last digit of .Answer: The last digit of is Câu 10:Given that the se...
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Câu 1:
9 is the squared of
Câu 2:
What is the greatest remainder when a number divide by 9?
Answer:
Câu 3:
.
Câu 4:
Câu 5:
100 pupils participate a drawing competition. 58 of them are girls. What percentage of the pupils who participate the competition are boys?
Answer: %
Câu 6:
The value of such that .
Answer:
Câu 7:
Anna is 1.53m tall. What is her height in centimeters?
Answer: (cm)
Câu 8:
The value of such that
Answer:
Câu 9:
Find the last digit of .
Answer: The last digit of is
Câu 10:
Given that the set .
How many elements are there in the set A?
Answer:
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LÀM VẬY ĐÚNG KO???
Bài thi số 1
Điền kết quả thích hợp vào chỗ (...):
12:09
Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)
Câu 1:
The succeeding number of -7 is 7
Câu 2:
Given that M is the midpoint of the segment AB. Calculate the length of the segment MB if AB = 10cm.
Answer: MB=5cm
Câu 3:
What is the absolute value of -4?
Answer: The absolute of -4 is4
Câu 4:
Find the value of
Answer: A=5
Câu 5:
Given that the distance from point a to point -1 on the number line is 7. Find a if a > 0.
Answer: a=6
Câu 6:
Find the opposite number of .
Answer: It is -28
Câu 7:
Find the greatest negative integer.
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Câu 8:
Given a segment AB = 4cm. Let C be a point such that A is midpoint of segment CB. Find the length of segment CA.
Answer: CA=4cm
Câu 9:
Given 20 points. Draw the lines through the 2 points of these 20 points. How many lines are there if only 3 of 20 points are aligned?
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Câu 10:
Find the smallest natural number which has exactly nine divisors.
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Đọc tiếp
Câu 1:
The fourth power of 3 is
Câu 2:
What is the greatest remainder when a number divide by 9?
Answer:
Câu 3:
Câu 4:
.
Câu 5:
100 pupils participate a drawing competition. 58 of them are girls. What percentage of the pupils who participate the competition are boys?
Answer: %
Câu 6:
Maria is 10 years old and her sister is 7 years old. In how many years' time will their total age be 41 years?
Answer: years.
Câu 7:
Câu 8:
Find such that:
Answer:
Câu 9:
Find the last digit of .
Answer: The last digit of is
Câu 10:
Given that the set .
How many elements are there in the set A?
Answer:
Câu 1:A is a set of multiples of 12 less than 12. How many elements does the set A have?Answer: The set A has element(s)Câu 2:Find the remainder when is divided by 9.Answer: The remainder is Câu 3:Find the remainder of when it is divided by 3.Answer: The remainder is Câu 4:A is the set of factor of 12 more than 6. How many elements does the set A have?Answer: The set A has element(s)Câu 5:Find the natural number so that the product of and 5 is a prime number.Answer: Câu 6:Given that . How...
Đọc tiếp
Câu 1:
A is a set of multiples of 12 less than 12. How many elements does the set A have?
Answer: The set A has element(s)
Câu 2:
Find the remainder when is divided by 9.
Answer: The remainder is
Câu 3:
Find the remainder of when it is divided by 3.
Answer: The remainder is
Câu 4:
A is the set of factor of 12 more than 6. How many elements does the set A have?
Answer: The set A has element(s)
Câu 5:
Find the natural number so that the product of and 5 is a prime number.
Answer:
Câu 6:
Given that . How many divisors does the number A have?
Answer: The number A has divisors.
Câu 7:
Given that . How many divisors does the number A have?
Answer: The number A has divisors.
Câu 8:
How many prime numbers less than 10 are there?
Answer: There are numbers.
Câu 9:
Find the greatest 2-digit number that has 12 divisors.
Answer: It is
Câu 10:
Among all natural number pairs satisfy , one pair has the greatest product. What is this product?
Answer: The greatest product is