UCLN CỦA 102, 68, -248
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Khách
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11 tháng 12 2021
TL
Khoảng cách nhỏ nhất không phải dựng lại = BCNN (65, 50) = 650 (m)
=> Cột thứ 650 : 10 + 1 = 11 không cần phải dựng lại
Khi nào rảnh vào kênh H-EDITOR xem vid nha!!! Thanks!
1 tháng 4 2021
1. During a car accident, I was free from danger. => in
2. My mother has gone shopping twice a week. =>goes
3. Never in my life have I visited to London. => bỏ to
4.Nobody phoned while I was out, did he? => they
5.My brother has got a job so that he could be independence of his parents.=> independent
6. She is used to work at night. => working
7. No sooner had I settled down to reading when the boss called. => than
8. Despite I try hard to play the piano, I don’t seem to improve. => Although
9. Whatever does he tells you , Don’t believe a word he says. => bỏ does
10. At 3 o’clock, he had finished his work.. => by
11. I am too tired that I can’t go out with you.=>so
12. I wish I went with you yesterday. => had gone
13. The people whom were there didn’t noe anything unusual. => who
14. She always makes the crossword in the papers when she is free. => does
15. I lost a lot of weigh when I was ill. => weight
16. The house hasn’t been lived for ages. (Chưa biết,mong thông cảm ạ )
17.If summer comes I will go on holiday. ( Chưa biết,thông cảm ạ )
18. He brushed in to the burning house to save a child, that was very brave. => which
19. He is out of work so he gets his employment benefits every thursday. => unemployment
20. He spent 3 hours to write this composition. => writing
B
1
BP
2
2 tháng 7 2023
a:
18=2*3^2;28=2^2*7
=>ƯCLN(18;28)=2
72=2^3*3^2; 80=2^4*5
=>ƯCLN(72;80)=8
70=7*2*5; 80=2^4*5
=>ƯCLN(70;80)=10
b:
102=6*17
60=2^2*3*5
=>ƯCLN(102;60)=6
65=5*13; 15=5*3
=>ƯCLN(65;15)=5
120=2^3*3*5; 140=2^2*5*7
=>ƯCLN(120;140)=20
2 tháng 7 2023
a ] 18 và 28
Ta có: 18 = 2 x 3\(^2\)
28 = 2\(^2\) x 7
=> UCLN [ 18 ; 28 ] = 2
. 72 và 80
Ta có: 72 = 2\(^3\) x 3\(^{^{ }2}\)
80 = 2\(^4\) x 5
=> UCLN [ 72 ; 80 ] = 2\(^3\) = 8
. 70 và 80
Ta có : 70 = 2 x 5 x 7
80 = 2\(^4\) x 5
=> UCLN [ 70 ; 80 ] = 2 x 5 = 10
b ] 102 và 60
Ta có: 102 = 2 x 51
60 = 2\(^2\) x 3 x 5
=> UCLN [ 102 ; 60 ] = 2
. 65 và 15
Ta có: 65 = 5 x 13
15 = 3 x 5
=> UCLN [ 65 ; 15 ] = 5
.120 và 140
Ta có : 120 = 2\(^3\) x 3 x 5
140 = 2\(^2\) x 5 x 7
=> UCLN [ 120 ; 140 ] = 2\(^2\) x 5 = 2
#Salem
26 tháng 10 2016
x : 102 + 68 = 272
x : 102 = 272 - 68
x : 102 = 204
x = 204 x 102
x= 20808
k mk nha bài này trên violympic lớp 5
102 = 2.3.17
68=2^2.17
-248= 2^3.(-31)
UCLN(102;68;-248) = 2
< tick mình nhé bạn. Năm mới vv thật nhiều! > ^_^
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