Тo’g’ri to’rtburchakning bo’yi sm ga teng. Eni bo’yidan 1,5 sm qisqa. Тo’g’ri to’rtburchakning yuzini toping


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7-sinf matematika 1-variant


7-sinf 1-variant
1.Тo’g’ri to’rtburchakning bo’yi 8 sm ga teng. Eni bo’yidan 1,5 sm qisqa. Тo’g’ri to’rtburchakning yuzini toping.
A)50 sm2 B)60sm2 D)52 sm2
2. Amallarni bajaring. 2,7 + ( 3,2+2,8 )
A) 10,2 B) 9,7 D) 8,7
3.Proporsiyaning noma’lum hadini toping. 3,5 : Х = 2,4 :4,8
A) 7 B) 64 D) 70
4. “Тiko”rusumli avtomobil 100 km masofaga 5 litr benzin sarflaydi. Bu avtomobil 50 km masofaga qancha benzin sarflaydi.
A) 7,5 B) 2,5 D) 6,5
5. O’xshash xadlarni ixchamlang 4a + 2 v+ a–v
A)5 a + vB) va + vD) 8a–v
6. O’xshash xadlarni ixchamlang 8a+ 2bv+ a –v
A) 9a+ bvB) 9a –vD) 9 a +2bv-v
7. Algebraik ifodani son qiymatini toping .
a + vs bunda a=1 v=2 s=3
A) 7 B) 8 D) 9
8. a –vs bunda a = 2 ; v = 1 ; s = 3
A) 9 B) 6 D) – 1
9. a=2 v = 3 bo’lganda 3a + 2v– 7 algebraik ifodaning qiymatini toping .
A) 5 B) 10 D) – 12
10. Soddalashtiring ( 5 a – 2 v) – ( 3v – 5a)
A) 8av – 7va B) 10a – 5v D) 10a + 6v
11. p ning son qiymatini toping . p = 2 ( a + v) a = 5 , v =7
A) 17 B) 24 D) 8
12. Тenglamani yeching .  x = 3
A) 1,5 B) 6 S) 8
13.Kasrlarni umumiy maxrajga keltiring . 
A) 2/4 B) 3/8D) 2/32
14.Birhadni boshqa birhadning kvadrati shaklida yozing: 9 a2.
A. 32a2 B. 33a2 D. 34a2
15. Birhadni ko’paytiring: (2a)(3b).
A. 6ab B. aba D. aab.
16.Har qanday ko’phadni qanday standart shakga keltirish mumkin?
A. Avval har bir hadini standart shaklda yozish, so’ngra o’xshash hadlarini ixchamlash kerak.
B. Oldin o’xshash hadlarini ixchamlanadi.
D. Javoblar noto’g’ri.
17. Uchburchakning yuzasini hisoblash formulasini ko’rsating.
A. S = 2 ab B.  D. 
18.Tenglamani yeching. (x - 5)(x + 4) = 0.
A. x=0 x=4 B. x=-5 x=4 D. x=5 x=-4
19. Umumiy ko’paytuvchini qavsdan chiqarish amali qaysi javobda to’g’ri ko’rsatilgan?3 a – 3 x.
A. (3 a – 3 x) B. 3 ax D. 3 (a – x).
20.85 sm.ni ditsmetrda ifodalang.
A. 85 dm. B. 8.5 dm. D. 0.85 dm.
21. Eng soda geometrik shakl nima?
A. nuqta. B. kesma D. bissektrisa
22.Kastni qisqartiring: 
A. B.  D. 
23.Algebraik kasrning son qiymatini toping:  bo’lsa, 
A.  B.  D. 
24. Algebralik ifodaning qiymatini toping 2a + 3 b = bunda a = 3 b = -2
A. 0 B. –2 D. 3
25. Ifodani son qiymatini toping.
A. 33 B. 36 D. -33
26.Sonli ifodaning qiymatini toping. 
A. 72 B. 24 D.32
27. Tenglamani yeching. 
A. 6 B. 5 D. 8
28. Ifodani daraja shaklida yozing. 
A.  B.  D. 
29. Ifodani qiymatini toping;
A. B. ; D. ;
30. Ko’phadni standart shakliga keltiring. 3a2 b - 8b2 - 5a2b + 6b2 + 3a2b - 2c2 =
A. 2 a2 b + 4b2 B. a 2 b - 2 b2 – 2 c2 D.5 a2 b2 –2 b
31. Ifodani soddalashtiring. (4a3b2)3 : (2a2b)2 =
A. 16a5 b4 B. 12a3 b3 D. 16a2b4
32. Aylananing radiusi nimaga teng?
A.R=d/2 B.d = 2R C. S=2rd
33. Amallarni bajaring , 3, 15 + ( 4,3 – 2, 18 ) =
A. 3, 5 B. 5, 27 D. 4,18
34.A=8*104 B=2,5*10-7 bo’lsa A*B ni toping
A.0,2 B.0.02 D.0,0002
35. Daraja shaklida yozing. (a2)3 * (a3)4 * a5
A. a23 B. a18 D. a16
36. Birhadlarni ko’paytiring. 
A. (1/2)a5 b6 x5 B. (1/2) a6 b8 x6 D. (1/3) a b2 x-1
37.(a-b)(a2+ab+b2) qaysi formula
A.kublar yig’indisi Bkublar ayirmasi D.ayirmaning kubi
38.1012-912 hisoblang
A. 1820 B.1920 D.1900
39. Tenglamani eching. 1+(5x-2)/2=0
A.0 ; B.  5 ; D.2 ;
40. Ko’paytuvchilarga ajrating. x (a - 2) + y(2 – a) + (a – 2) =
A. (a - 2)(x – 2y) B.(a - 2)(x-y+1) D.(a - 3) (x - 2)
41. Hisoblang. 124*13+15*124-124*22
A. 720 B. 680 D.744
42. Soddalashtiring. 
A. b2 B. 0 D. b3
43. n = 2k + 1 formulada k = - 5 bo’lganda n ning quymatini toping .
A. –5 B. 8 D. –9
44. Hisoblang.(35 * 310)/(36 * 37)
A. 81 B. 27 D. 9 E. 3 F. 1
45. Tenglamani eching. – x – 1 = x;
A. x=-1; B. x=1; D. x= - 0,5;




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