Matematikadan testlar. 7-sinf Ko’paytuvchilarga ajrating: 5(a-b)+a

Matematikadan testlar. 7-sinf
1.Ko’paytuvchilarga ajrating:5(a-b)+a²(a-b)-3(b-a) A) (a-b)(a²+2) B) (a-b) (a²-8)
D) (a-b)(a²+8) E) (b-a)(a²-8)
2. Umumiy ko’paytuvchini qavsdan tashqariga chiqaring: 24a³b² – 30a²b³
A) 6a²b²(4a-5b) B) 6ab(4a²b-5ab²) D) (a-b)(4a³-5a) E) 3a²b(8ab-10b²)
3. .Ko’paytuvchilarga ajrating : 4a(x-y)+4az+7b(y-x-z) A) (x-y+z)(7b-4a)
B) (y-x-z)(7b+4a) D) -(x-y+z)(4a+7b) E) (x-y+z)(4a-7b)
4. Hisoblang: 16,9²-16,9.3,7-16,9.3,2 A) 169 B) 1,69 D) 180 E) 230
5. Hisoblang: 47,8.1,5 +1,8.52,2 +52,2.1,5+1,8.47.8 A) 300 B) 330 D) 180 E) 130
6. . Ko’paytuvchilarga ajrating:ax +bx-3ay-3by A) (a+b )( x+3y) B) (a-b)(x+3y)
D) (a+b)(x-3y) E) to’g’ri javob berilmagan
7. Ko’paytuvchilarga ajrating 7a(5a-3b)-10a+6b
A) (5a+3b)(7a-2) B) ( 3b-5a)(7a+2) D) (5a-3b)(7a+2) E) (5a-3b)(7a-2)
8. Ifodaning son qiymatini toping :a³-a²b-3a+3b, bunda a=2,5; b=- 1,5
A) 3,25 B) 13 D) 5 E) -3,25
9. Tenglamani yeching: 81x² – (4 – 9x ) ² =56 A) -1 B) 1 D) -2 E) 3
10.Tenglamani yeching: (3x+2)² –(3x-4)²=132 A) 4 B) 3 D) -4 E) ildizi yo’q
11.Bo’sh qoldirilgan joylarni mantiqan to’g’ri so’zlar bilan to’ldiring
To’g’ri chiziqda yotuvchi nuqta orqali unga perpendikulyar bo’lgan ……….. o’tkazish mumkin. A) kesma B) nur D) to’g’ri chiziq E) tekislik
12. Mos tomonlari perpendikulyar bo’lgan burchaklarning biri ikkinchisidan 90⁰ ga katta . Shu burchaklarni toping A) 90⁰ , 90⁰ B) 60⁰, 150⁰ D) 30⁰,120⁰ E) 45⁰,135⁰
13.Ikki parallel to’g’ri chiziq kesuvchi bilan hosil qilgan burchaklardan biri 34⁰ga teng . Qolgan burchaklarni toping A) 66⁰ B) 56⁰ D) 146⁰ E) 106⁰
14 Uchburchak burchaklari 2:3:7 kabi nisbatda bo’lsa , ularning gradus o;lchovlarini toping A) 30⁰,45⁰,105⁰ B) 45⁰, 45⁰, 90⁰ D) 60⁰,100⁰ ,200 E) 60⁰,80⁰,40⁰
15. Burchaklari 100⁰, 20⁰,50⁰ bo’lgan uchburchak mavjudmi ? A) mavjud
B) mavjud emas D) aniqlab bolmaydi E) A) va B)
16. Ko’paytuvchilarga ajrating :8a³-27b³ A) (2a-3b)²(2a+3b) B) (2a+3b)²(2a-3b) D) (2a-3b)(4a²+6ab+9b²) E) (2a+3b) (4a²+6ab+9b²)
17. Ko’paytuvchilarga ajrating : (a²+25)² – 100a² A) (a-5)³(a+5) B) (a-5)(a+5)³
D) (a-5)²(a+5) E) (a-5)²(a+5)²
18. Hisoblang : (53³+47³) : (53²-53.47 +47²) A) 6 B) 100 D) 600 E) 110
19.( Qadimiy masala ) Baliqning uchdan bir qismi loyda , to’rtdan bir qismi suv tagida va uch qarichi suv ustida Baliiiqning uzunligi necha qarich?
A) 3,5 B) 5 D) 7,5 E) 7,2
20 O’xshash hadlarni ixchamlang : 2,3a-0,7a+3,6a-1= A) 1 B) 3a D) 5,2a-1
21 Qavslarni oching va soddalashtiring : 3a- (a+2b )= A) 2a-2b B) a-b D) a E) b-a
22 Teng yonli uchburchakning perimetri P ga , asosining uzunligi a ga teng . Uchburchakning yon tomoni uzunligini toppish uchun ifoda tuzing A) 2a-P B) 2p-a D) 0,5 (P-a) E) P-2a
23 Ifodani soddalashtiring va uning a=2,7 , b=42 bo’lgandagi son qiymatini toping: 3(2a-b)-2(a-2b) A) 24,36 B) 27,6 D) 15 E) 14
24Tenglamani yeching: 8(x+2) -5x= - 2(x+4,5 ) A)-5 B) 5 D) -4,5 E) to’g’ri javob berilmagan
25 Usta buyurtmani 8 kunda bajarishi kerak edi .U har kuni rejadan tashqari 6 ta mahsulot tayyorlab , buyurtmani 5kunda bajaribgina qolmasdan, balki ortiqcha yana 12 ta mahsulot tayyorladi. Usta reja bo’yicha bir kunda nechta mahsulot tayyorlashi kerak edi? A) 8 B) 4 D) 7 E) 6

1 D	2 A	3 E	4 A	5 B
6 D	7 E	8 B	9 B	10 A
11 D	12 E	13 D	14 А	15 B
16 D	17 E	18 B	19 E	20 D
21 A	22 D	23 D	24 A	25 E

7-sinf matematikadan testlar.

1. Soddalashtiring: (2a-b)² – (2a+b)²
A) 0 B) -2b² D) -8ab E) -4ab+2b²
2. Ko’paytuvchilarga ajrating: 2a²b – 3a + 10ab² – 15b
A) (2ab + 3)(a – 5b) B) (a+5b)(2ab – 3) D) (2a²+b)(b – 5a) E) (ab+5)(2a – 3b)
3. Ko’paytuvchilarga ajrating: 1 – (2x – 3)²
A) 2(x+2)(x+1) B) 3(x -2)(x+1) D) 4(2 – x)(x – 1) E) 2(1 – x)(x – 2)
4. Soddalashtiring:  A)1.6 B) 0.375 D) 0.6 E) 0.75
5. Chumoli 5 minutda m yuradi. U 1 minutda necha metr yuradi?
A)  B)  D)  E) 3
6. Uchburchaf burchaklarining kattaloklari 2, 3 va 10 sonlariga proporsional. Uchburchak burchaklarini toping.
A) 24⁰,36⁰,120⁰ B)20⁰,46⁰,120⁰ D)30⁰,40⁰,110⁰ E) 60⁰,90⁰.10⁰
7. O’zbekiston Respublikasining yer maydoni quruqlikning 0,3 foizini tashkil qiladi. Agar Yer yuzidagi quruqlikning maydoni 149,633 million km² bo’lsa , mamlakatimiz yer maydonini toping . A) 448899mln km²
B) 448999mln km² D) 450000 min km² E) 448888mln km²
8. Agar uchburchakning A, B va C burchaklari 1:2 va 3 sonlariga proporsional bo’lsa , B burchakni toping
A) 30⁰ B) 60⁰ D) 45⁰ E) 120⁰
9. Agar uchburchak burchaklari 5: 6 va 7 sonlariga proporsional bo’lsa , uchburchak katta burchagini toping.
A) 30⁰ B) 40⁰ D) 50⁰ E) 70⁰
10. (3+25x) : (3x+7)=5 tenglamani yeching A) -3,2 B) 1,5 D) 3,2 E) -3
11.
60⁰ allb α – ?
a A) 120⁰ B) 110⁰ D) 160⁰ E)150⁰

b
α

12. Do’konga keltirilgan tarvuzning 56% i birinchi kuni, qolgan 132 tasi ikkinchi kuni sotildi. Birinchi kuni qancha tarvuz sotilgan?

A) 168 B)148 D)138 E) 158
13. Bosh qoldirilgan joylarni mantiqan to’g’ri so’zlar bilan to’ldiring.
Uchburchakning uchki burchagiga . . . . . . . . uchburchakning tashqi burchagi deb ataladi.
A) vertikal B) o’tkir D) o’tmas E) to’g’ri javob yo’q
14. Qavslarni oching va soddalashtiring. 5a+(3a – (4a+3))
A) 8a+3 B) 4a – 3 D) 3 – 4a E) 4a+3
15. 4+8y+8=2y – 10 – 7y+9 tenglamani yeching.
A) – 2 B) 2 D) 0 E) – 1
16. Otasi 40 yoshda o’g’li 16 yoshda. Necha yildan keyin otasi o’g’lidan 2 marta katta bo’ladi?
A) 8 B) 7 D) 4 E) 3
17. Ko’paytuvchilarga ajrating: 4(a – 2b)² – 25(3a – b)²
A) (a – 2b)(3a – b) B) (13a+9b)² D) (17a – 9b)(– 13a – 9b) E) (17a – 9b)²
18. Hisoblang.
A)  B)  D)  E) 
19. Tenglamani yeching. 7(x – 3) = 49
A) 17 B) 8 D) 10 E) 11
20. Bahosi 15% arzonlashtirilgandan so’ng soatning narxi 1445 so’m bo’ldi. Arzonlashmasdan oldin soat necha so’m turgan?
A) 1700 B) 1400 D) 10000 E) 1500
21. Sonlarning eng katta umumiy bo’luvchisini toping: 108, 162 va 243
A) 29 B) 28 D) 27 E) 36
22. Sonlarning eng kichik karralisini toping: 70, 105 va 140
A) 420 B) 210 D) 240 E) 35
23. Men bir son o’yladim. Agar u 7ga ko’paytirilsa natija 4, 5ga kamaytirilsa 55 chiqadi. Men qanday son o’yladim?
A) 8 B) 8.5 D) 9 E) 9.5
24. 3(2x+1) +5(1+3x) ifodani soddalashtiring.
A) 21x+8 B) 6x+8 D) 11x+5 E) 6x+20
25. – 5*( – 2)³ = ? Hisoblang.
A) – 1000 B) 19 D) 100 E) 40

1 D	2 B	3 D	4 E	5 D
6 A	7 A	8 B	9 E	10 D
11 E	12 A	13 E	14 B	15 E
16 A	17 D	18 B	19 D	20 A
21 D	22 E	23 B	24 A	25 E

3-variant
1. Hisoblang: 2,23 + ( 1,5-1,23) A)2,5 B) 3 D) 4 E) 1,5
2. Algebraik ifodaning qiymatini toping:  bunda a=4 b=-2
A) 4 B) 5 C) 1 D) 0
3. O’xshash hadlarni ixchamlang: 8a+7b – 3c+2a – 7b+5c
A)10a+7b – 3c B) 10a+2c C) 8a – 5c D) 3c+7b
4. Qavslarni oching va soddalashtiring. 5x – (4x+2y – 3)
A) 4x+2y – 3 B) x+2y – 3 C) x – 2y – 3 D) x – 2y+3
5. teng yonli uchburchakning perimetri x gat eng. Yon tomoni asosidan 2sm qisqa bo’lsa, shu uchburchakning yon tomoni uzunligini toping.
A)  B)  C)  D) 
6. Qo’shni burchaklardan biri ikkinchisidan 4marta katta bo’lsa, shu burchaklardan kichigini toping.
A) 144⁰ B) 156⁰ C) 36⁰ D) 136⁰
7. tenglamani yeching: 7 – 2x = 3
A) 1 B) 2 C) 3 D)4
8. Ifodani soddalashtiring:  (b+c)(b+c)(b+c)
A)  (b+c) B)  (b+c)² C)  (b+c)³ D) (b+c)³
9. Hisoblang: 
A) 27 B) 9 C) 81 D)3
10. burchakning bissektrisasi uning tomoni bilan 40⁰ li burchak tashkil etsa, burchakni o’zini toping.
A) 50⁰ B) 60⁰ C) 70⁰ D) 80⁰
11. Birhadni standart shaklga keltiring. 2a²bc*3ab²c²
A) 6(abc)³ B) 2a²bc C) 3ab²c² D) 6abc
12. Ifodaning qiymatini toping.  ab*3ab² , bunda a=2, b= – 1
A) 7 B) 8 C) – 8 D) 10
13.tenglamani yeching. 3⁶:x=3
A) 3 B) 9 C) 27 D) 81
14.Uzunligi 4,2 ga teng bo’lgan kesmani 2:5 nisbatda bo’lishdan hosil bo’ladigan kesmalar uzunligini toping.
A) 1.8 va 2.4 B) 1.2 va 3 C) 1.4 va 2.8 D) 1.2 va 1.2
15. quyidagi birhadlardan ko’phad tuzing. a², 6a va – 9
A) a²+6a+9 B) a²+9 C) 6a – 9 D) a²+6a – 9
16. ko’phadning son qiymatini toping. 3a²+ab+b² , bunda a=2, b=– 1
A) 8 B) 9 C) 11 D) 6
17.Tenglamani yeching. 
A) 5 B) 1 C) 0 D) 3
18.O’xshash hadlarni ixchamlang. 7a+8b – 3a+2b – 7b
A) 4a+3b B) 7a – 8b C) 4a – 7b D) 7b+3a
19.Ko’phad va birhad ko’paytmasini toping. 3xy(2x²y² – 5xy+10)
A) 6x³y³ – 15x²y²+30xy B) 6x³y³ – 15xy² C) 6x²y²+30xy D) 15x²y² – 30xy
20. Ko’phadlarni ko’paytiring. (a+4)(a – 3)
A) a²+a – 12 B) a² – 12 C)a²+2a – 12 D) a²+12a
21. Qo’shni burchaklardan biri ikkinchisidan 4 marta katta bo’lsa, shu burchaklardan kattasini toping.
A) 144⁰ B) 156⁰ C) 36⁰ D) 72⁰
22. Hisoblang: 
A) 2 B) 4 C) 0 D)1
23. Ko’phadning son qiymatini toping. 5a²+ab – 7ab² bunda a=1 b= – 1
A) 3 B) 5 C) -3 D) 4
24. Tenglamani yeching . 2:x = 3:12
A) 5 B) 6 C) 7 D)8
25. Sonli ifodaning qiymatini toping. 25*0.32+0.32*75
A) 64 B) 52 C) 32 D) 16

1 A	2 C	3 B	4 D	5 C
6 D	7 B	8 C	9 A	10 D
11 A	12 C	13 A	14 B	15 D
16 C	17 B	18 A	19 A	20 A
21 A	22 D	23 C	24 D	25 C

7-sinf matematika

1. Umumiy ko’paytuvchini qavsdan tashqariga chiqarish amali qaysi javobda to’g’ri ko’rsatilgan? 3a – 3x
A) (3a – 3x) B) 3ax C) 3(a – x)
2. Aylana uzunligi nimaga teng?
A) C= 2πR B) C=2π C) c= 4π²
3. 85 sm ni dm da ifodalang.
A) 85dm B) 8.5 dm C) 0.85 dm
4. Eng soda geometrik shakl nima?
A) nuqta B) vergul C) to’g’ri chiziq
5. 2ta nuqta orqali nechta to’g’ri chiziq o’tkazish mumkin?
A) 3 B) 2 C) 1
6. Aylananing radiusi nimaga teng?
A) R =  B) d=2R C) R=2π
7. ikkita parallel to’g’ri chiziqni qanday belgilaymiz?
A ) a b B) allb C)8. Tenglamani yeching. 64x² – (3 – 8x)² =87
A) x₁=3 x₂= -3 B) x₁=2 x₂= -0.5 C) x₁=0.5 x₂= -2
9. Kasrni qisqartiring. 
A) B) C)
10. Algebraik kasrninf son qiymatini toping.  bo’lsa, b = 1.5
A)  B)  C) 
11. Kasrni umumiy mahrajga keltiring.  va 
A) va  B) va C)  va 
12. Algebraik kasrlarni qo’shish amali qaysi javobda to’g’ri keltirilgan?
A)  B)  C) 
13. birhadni boshqa birhadning kvadrati shaklida yozing. 9a²
A) 3²a² B) 3³a² C) 3⁴a²
14. Birhadni darajaga ko’paytiring. (2a)³
A) 2a⁴ B) 2³a³ C) 2a⁵
15. Birhadni boshqa birhadning kubi shaklida yozing. 27a³
A)27³a³ B) 9³a³ C) 3³a³
16. Birhadni ko’paytiring. (2a)(3b)
A) 6ab B)aba C) aab
17. Ko’phadlar deb nimaga aytiladi?
A) Bir nechta birhadning algebraik yig’indisi ko’phad deyiladi
B) Bir nechta birhadlarning ko’paytmasi ko’phad deyiladi
C) Bir nechta birhadlarning bo’linmasi ko’phad deyiladi
18. 2a³+3ab bunda a = 1 b=2 ko’phadning son qiymati qaysi javobda to’g’ri ko’rsatilgan?
A) 6 B) 8 C) 10
19. Harqanday ko’phadni qanday standart shaklga keltirish mumkin?
A) Avval har bir hadni standart shaklda yozish, so’ngra o’xshash hadlarni ixchamlash kerak
B) Oldin o’xshash hadlar ixchamlanadi C) to’g’ri javob yo’q
2 0. Rasmdagi uchburchakning yuzi qaysi formula bilan ifodalanadi?

a A) S=2ab B) S=  ab C) S= 

b
21. a+36 =63 Tenglamani yeching.
A) 40 B) 27 C) 39
22. 39n< 50 tengsizlikni qanoatlantiruvchi natural sonlar ichidan eng kattasi qaysi?
A) 1 B) 11 C) 49
23. Poyezdning uzunligi 800m. U ustun yonidan 40 sekundda o’tib ketdi. Poyezdning tezligini toping.
A) 30 m/s B) 15 m/s C) 20m/s
24. Tenglamani yeching. 3x² – 9x = 0
A) x=3 x=3 B) x=0 x=3 C) x=5 x=6
25. Tenglamani yeching. (x – 5)(x+4) = 0

1 A	2 C	3 B	4 D	5 D
6 B	7 A	8 A	9 C	10 B
11 A	12 B	13 C	14 D	15 A
16 A	17 C	18 A	19 C	20 D
21 A	22 C	23 B	24 C	25 A

A) x=5 x= -4 B) x= -5 x= 4 C) x=0 x=4