Which of following numbers is composite?
47, 53, 97, 73, 51, 29
Question 1:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 2:
Which of following numbers is prime?
Answer:
Question 3:
Which of following numbers is composite?
Answer: .
Question 4:
The smallest odd multiple of 9 is
Question 5:
The number 55 has factors.
Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
Question 7:
Find the sum of all the factors of 19
Answer:
Question 8:
In the following numbers, which has the most factors?
Answer:
Question 9:
How many numbers from 1 to 500 are multiple of 6?
Answer:
Question 10:
The largest possible whole number that is less than 120 and has only 2 and 5 as prime factors is
Which of the following numbers can be the addition of four consecutive numbers: 29; 18; 11; 15?
Which of the following numbers can be the addition of four consecutive numbers: 29; 18; 11; 15. answer
Question 1:
J is a factor and a multiple of 25. What is J?
Answer: J =
Question 2:
How many prime numbers are less than 10?
Answer: There are
numbers.
Question 3:
Which of following numbers is composite?
Answer:
.
Question 4:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 5:
Find the sum of all the factors of 15
Answer:
Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB =
cm
Question 7:
A prime number between 42 and 46 is
Question 8:
Find the sum of all the factors of 19
Answer:
Question 9:
How many prime numbers have formed ?
Answer: There are
numbers
Question 10:
How many multiples of 3 less than 1000?
Answer:
Which of following numbers is closest to 0.5 ?
Which of following numbers is smaller than 55606149 and larger than 55604896
A. 55695346
B. 55614186
C. 55601982
D. 55605286
a) 27 x 35 + 73 x 6 - 27 x 29
b) 29 x (47+53) - 47 x (29 +53)
c) 5 x 17 x 4 x25 x20
Tính nhanh
ai thông mk hơn học sinh lớp 6
tk nhóe
a) 27 x 35 + 73 x 6 - 27 x 29
= 27 x ( 35 - 29 ) + 73 x 6
= 27 x 6 + 73 x 6
= 6 x ( 27 + 73 )
= 6 x 100
= 600
b) 29 x ( 47 + 53 ) - 47 x ( 29 + 53 )
= 29 x 47 + 29 x 53 - 47 x 29 + 47 x 53
= 29 x ( 47 + 53 - 47 ) + 47 x 53
= 29 x 53 + 47 x 53
= 53 x ( 29 + 47 )
= 53 x 76
= 4028
c) 5 x 17 x 4 x 25 x 20
= ( 5 x 20 ) x ( 4 x 25 ) x 17
= 100 x 100 x 17
= 10000 x 17
= 170000
lớp 3 cút , ng ta nói hơn lớp 6 mak
51. The telephone ____________ gives people’s names, addresses and telephone numbers. ( list, directory, dictionary)
52. __________ is your telephone number ? - 8765432.( What, How, Where )
53. What’s your _________ ? – May 5th . ( date of birth, birthday , birth date )
54. I’m sorry . Mary isn't in at the moment. Can you _______ back later? ( call, say, speak)
55. I’d like to have your _____ . OK. 98765432. ( phone, mobile phone, address, telephone number )
56. She is a new student , so she is __________ . ( nervous, nice, sure)
57. Which is the _________ month of the year? – March. ( three, third, fifth)
58. Which is the ninth month of the year ? - ___________. ( September , November, February)
59. Her birthday is on the __________ of July. ( twelve, twelfth, twelveth)
60. The phone is ringing. – I’ll _______ it. ( open, answer , listen)
61. I am going to ______ a party. Would you like to come? ( start, invite, have, meet )
62. She will _______ some of her friends to the birthday party. ( invite, have, meet, see )
63. Her father is a doctor. He works in a . . . . . . . . . . (school / hospital /factory / farm)
64. She is a teacher . She teaches in a primary . . . . . . . . . (school / hospital /factory / farm)
65. He is a . . . . . . . . . . . . . He works on a farm. ( teacher / farmer / journalist/ doctor)
51. directory
52. What
53. date of birth
54. call
55. telephone
56. nervous
57. third
58. September
59. twelfth
60. answer
61. have
62. invite
63. hospital
64. school
65. farmer
Which of following numbers is less than 7?
Giúp mk với,mk ko hiểu