Find x+y such that 2^x+80=3^y
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
Given that 1400=2a *5b*7c. Find the value of a+b+c.
Answer:
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 a segment AB=10cm.Let C be the point of segment AB such that AC-BC=4.Find the length of segment AC.
Answer:
Câu 1: Given that is divisible by 9. What is the value of ?
Câu 2: How many elements of the set A are divisible by 9?
Câu 3:A is a set of multiples of 12 less than 12. How many elements does the set A have?
Câu 4:Find the remainder when is divided by 3.
Câu 5:Given that 511 is the sum of two prime numbers and , . What is the value of ?
Câu 6:Given that . Find the value of .
Câu 7:Given that . How many divisors does the number A have?
Câu 8:Find the natural number so that the product of and 5 is a prime number.
Câu 9:
Given that . How many divisors does the number A have?
Câu 10:
Given that . How many divisors the number A have?
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
5. Find the natural number x, given that:
Question 8: 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)=(