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) C) (a-b)(a²+8) D) (b-a)(a²-8)
2. Umumiy ko’paytuvchini qavsdan tashqariga chiqaring: 24a³b² – 30a²b³
A) 6a²b²(4a-5b) B) 6ab(4a²b-5ab²) C) (a-b)(4a³-5a) D) 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) C) -(x-y+z)(4a+7b) D) (x-y+z)(4a-7b)
4. Hisoblang: 16,9²-16,9.3,7-16,9.3,2
A) 169 B) 1,69 C) 180 D) 230
5. Hisoblang: 47,8.1,5 +1,8.52,2 +52,2.1,5+1,8.47.8
A) 300 B) 330 C) 180 D) 130
6. Ko’paytuvchilarga ajrating: ax +bx-3ay-3by
A) (a+b )( x+3y) B) (a-b)(x+3y) C) (a+b)(x-3y) D) to’g’ri javob berilmagan
7. Ko’paytuvchilarga ajrating 7a(5a-3b)-10a+6b
A) (5a+3b)(7a-2) B) ( 3b-5a)(7a+2) C) (5a-3b)(7a+2) D) (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 C) 5 D) -3,25
9. Tenglamani yeching: 81x² – (4 – 9x ) ² =56
A) -1 B) 1 C) -2 D) 3
10.Tenglamani yeching: (3x+2)² –(3x-4)²=132
A) 4 B) 3 C) -4 D) 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 C) to’g’ri chiziq D) tekislik
12. Mos tomonlari perpendikulyar bo’lgan burchaklarning biri ikkinchisidan 90⁰ ga katta . Shu burchaklarni toping
A) 90⁰ , 90⁰ B) 60⁰, 150⁰ C) 30⁰,120⁰ D) 45⁰,135⁰
13.Ikki parallel to’g’ri chiziq kesuvchi bilan hosil qilgan burchaklardan biri 34⁰ga teng . Qolgan burchaklarni toping
A) 66⁰ B) 56⁰ C) 146⁰ D) 106⁰
14 Uchburchak burchaklari 2:3:7 kabi nisbatda bo’lsa , ularning gradus o;lchovlarini toping
A) 30⁰,45⁰,105⁰ B) 45⁰, 45⁰, 90⁰ C) 60⁰,100⁰ ,200 D) 60⁰,80⁰,40⁰
15. Burchaklari 100⁰, 20⁰,50⁰ bo’lgan uchburchak mavjudmi ?
A) mavjud B) mavjud emas C) aniqlab bolmaydi D) A) va B)
16. Ko’paytuvchilarga ajrating : 8a³-27b³
A) (2a-3b)²(2a+3b) B) (2a+3b)²(2a-3b) C) (2a-3b)(4a²+6ab+9b²) D) (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 C) (a-5)²(a+5) D) (a-5)²(a+5)²
18. O’xshash hadlarni ixchamlang : 2,3a-0,7a+3,6a-1
A) 1 B) 3a C) 5,2a-1 D) -2a-1
19. Qavslarni oching va soddalashtiring : 3a- (a+2b )
A) 2a-2b B) a-b C) a D) b-a
20. 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 C) 15 D) 14

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

7-sinf matematikadan testlar.

1. Soddalashtiring: (2a-b)² – (2a+b)²
A) 0 B) -2b² C) -8ab D) -4ab+2b²
2. Ko’paytuvchilarga ajrating: 2a²b – 3a + 10ab² – 15b
A) (2ab + 3)(a – 5b) B) (a+5b)(2ab – 3) C) (2a²+b)(b – 5a) D) (ab+5)(2a – 3b)
3. Ko’paytuvchilarga ajrating: 1 – (2x – 3)²
A) 2(x+2)(x+1) B) 3(x -2)(x+1) C) 4(2 – x)(x – 1) D) 2(1 – x)(x – 2)
4. Soddalashtiring: 
A)1.6 B) 0.375 C) 0.6 D) 0.75
5. Uchburchaf burchaklarining kattaloklari 2, 3 va 10 sonlariga proporsional. Uchburchak burchaklarini toping.
A) 24⁰,36⁰,120⁰ B)20⁰,46⁰,120⁰ C)30⁰,40⁰,110⁰ D) 60⁰,90⁰.10⁰
6. 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 C) 450000 min km² D) 448888mln km²
7. Agar uchburchakning A, B va C burchaklari 1:2 va 3 sonlariga proporsional bo’lsa , B burchakni toping
A) 30⁰ B) 60⁰ C) 45⁰ D) 120⁰
8. Agar uchburchak burchaklari 5:6 va 7 sonlariga proporsional bo’lsa , uchburchak katta burchagini toping.
A) 30⁰ B) 40⁰ C) 50⁰ D) 70⁰
9. (3+25x) : (3x+7)=5 tenglamani yeching
A) -3,2 B) 1,5 C) 3,2 D) -3
10.
60⁰ allb α – ?
a A) 120⁰ B) 110⁰ C) 160⁰ D)150⁰

b
α

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

A) 168 B)148 C)138 D) 158
12. 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 C) o’tmas D) to’g’ri javob yo’q
13. Qavslarni oching va soddalashtiring. 5a+(3a – (4a+3))
A) 8a+3 B) 4a – 3 C) 3 – 4a D) 4a+3
14. 4+8y+8=2y – 10 – 7y+9 tenglamani yeching.
A) – 2 B) 2 C) 0 D) – 1
15. Ko’paytuvchilarga ajrating: 4(a – 2b)² – 25(3a – b)²
A) (a – 2b)(3a – b) B) (13a+9b)² C) (17a – 9b)(– 13a – 9b) D) (17a – 9b)²
16. Tenglamani yeching. 7(x – 3) = 49
A) 17 B) 8 C) 10 D) 11
17. Bahosi 15% arzonlashtirilgandan so’ng soatning narxi 1445 so’m bo’ldi. Arzonlashmasdan oldin soat necha so’m turgan?
A) 1700 B) 1400 C) 10000 D) 1500
18. Sonlarning eng katta umumiy bo’luvchisini toping: 108, 162 va 243
A) 29 B) 28 C) 27 D) 36
19. 3(2x+1) +5(1+3x) ifodani soddalashtiring.
A) 21x+8 B) 6x+8 C) 11x+5 D) 6x+20
20. – 5*( – 2)³ = ? Hisoblang.
A) – 1000 B) 19 C) 100 D) 40

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