the least common multiple of three consecutive 360 .find sum of three number
giai nhanh gium minh
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
Lan draws a circle and a triangle on each page of her booklet, and near each drawing she writes the number of common points of the circle and the triangle.
How many different numbers can she write?
Jane draws a circle and a triangle on each page of her booklet, and near each drawing she writes the number of common points of the circle and the triangle.
How many different numbers can she write?
The difference of the greatest and the least 4 – digit number can you make using all digit 9;3;0;7 is ?
The difference of the greatest and the least 4 – digit number can you make using all digit 9;3;0;7 is
The difference of the greatest and the least 4-digit number can you make using all digit 9;3;0;7 is...
nhanh lên gấp lắm rùi
Class 6A has 42 pupils. 30 of them joined the Swimming club and 25 of them joined the Gymastic club. All pupils must be a member of at least one club, find the number of pupils who joined both clubs.(loi giai nha)
There are 4 pieces of white chopsticks, 5 pieces of yellow chopsticks and 6 pieces of blue chopsticks mixed together. If you want to get 2 pairs of chopsticks with the same colour in the dark, at least how many pieces of chopsticks should be taken?