5-sinf uchun matematika fanidan bkm lar ruyxati va ularga mos variant savollari

8-sinf uchun test
1.y=3x chiziqli funksiyada y=12 bo’lsa , x argumentning qiymatini toping.
A) 3/12 B) 36 C) 4 D) 15 E) 9
2. Chiziqli tenglamani yeching : 0,6x-12=0 .
A) 2 B)11,4 C) -11,4 D) 20 E) -20
3. Tenglamalar sistemasini yeching:
A) ( ;1) B) ( ;1) C) ( ;1) D) (- ;-1) E) (-1; )
4. Masala: ikki xonali sonning raqamlar yig’indisi 9 ga teng. Shu raqamlar bilan teskari tartibda yozilgan son berilgan sondan 27 ta ortiq. Berilgan sonni toping.
A) 72 B) 36 C) 45 D) 81 E) to’g’ri javob yo’q.
5. Tengsizliklarni qo’shing: 3x+y<2x+1 va 3y -2x<14x-2
A) x+4y<16y-x B) 3x+y+3y-2x<2x+1+14x-2 C) x+4y<16x-1 D) 2xy<16x-1 E) x+4y>16x-1
6. Tengsizlikni yeching : 5(x-3) + 2x<4x+3.
A) x<6 B) x<-6 C) x>6 D) x>-6 E) x=6
7. Tengsizlikni yeching: |4x-5 | ≤3
A) x≥-2 B) 1/2≤x≤1 C) 1/2≤x≤2 D) -2≤x≤-1/2 E) 0≤x≤2
8. Qo’sh tengsizlikni yeching: -2<10+x< 6
A) -129. Sonni yuzdan birgacha yaxlitlang . Yaxlitlashning nisbiy xatoligini toping:5, 7635
A) 5,76; 0,8% B) 5,76; 0,9% C) 5,77; 0,08% D) 5,76; 0,06% E)to’g’ri javob berilmagan
10. Sonni standart shaklda yozing: 0, 00000056
A) 5,6*10⁷ B) 56*10⁸ C)5,6*10^-7 D) 56*10^-8 E)0,56*10⁷
11. Orasida soni yotga ikkita ketma-ket butun sonni toping.
A) 3;4 B) 4;5 C) 5;6 D) 6;7 E) 7;8
12. . Hisoblang:
A) 3 B) 7 C) 21 D) 441 E) |-21 |
13. . Masala: opasi ukasidan 6 yosh katta, bir yildan keyin esa opasi ukasidan 2 marta katta bo’ladi. Ularning har biri necha yoshda?
A) 8;2 B) 12; 6 C) 10; 4 D) 11;5 E) to’g’ri javob berilmagan
14. Sonni o’ndan birgacha yaxlitlang . Yaxlitlashning nisbiy xatoligini toping:2,2941
A)2,3; 2,6% B) 2,2; 2,5% C) 2,3; 0,3% D) 2,3; 0,4% E) 2,3; 0,26%
15. . To’g’ri burchakli uchburchakning katetlari 5sm va 6 sm. Uchburchakning yuzini toping.
A) 30sm² B) 5/6sm² C) 15sm² D) 60sm² E) sm²
16. Tomonlari teng bo’lgan parallelogramm … deyiladi.
A) Romb B) Kvadrat C) To’g’ri to’rtburchak D) Trapetsiya E) To’g’ri javob keltirilmagan.
17. Parallelogrammning bir tomoni ikkinchisidan 3 marta uzun bo’lib, perimetri 20 sm bo’lsa, parallelogramm tomonlarining uzunliklarini toping.
A) 3 va 7 B) 6 va 4 C) 1 va 9 D) 2 va 8 E) 2,5 va 7,5
18. Rombning bir burchagi ikkinchisidan 14⁰ kam bo’lsa, shu rombning burchaklarini toping.
A) 166⁰ va 194⁰ B) 95⁰va 85⁰ C) 83⁰ va 97⁰ D) 100⁰ va 80⁰ E) 110⁰va 70⁰
19. Uchburchakning asosi 5,6 sm ga teng . Uchburchakning o’rta chizig’ini toping.
A) 11,2sm B) 16,8 sm C) 5,6√3sm D) 2,8sm E) to’g’ri javob ko’rsatilmagan
20. Agar to’g’ri to’rtburchakning tomonlari 4 marta orttirilsa, uning yuzi necha marta ortadi?
A) 4 B) 8 C) 12 D) 16 E) 32
21.To’g’ri burchakli uchburchakning katetlaridan biri 12 sm, gipotenuzasi esa ikkinchi katetdan 6 sm uzun . Gipotenuzaning uzunligini toping.
A) 15 B) 25 C) 26 D) 18 E) 32
22. Tenglamani yeching: 4284  (x378)=1000.
A) 3062; B) 3000; C) 3662; D) 3002. E)to’g’ri javob berilmagan
23. Teng yonli uchburchak perimetri 24 sm teng. Agar uchburchak asosining uzunligi 6 sm bo’lsa, yon tomoni uzunligi necha sm?
A) 9; B) 19; C) 4; D) 8. E)to’g’ri javob berilmagan
24. To’g’ri to’rtburchakning eni 7 ga teng, bo’yi undan 9 ga ortiq. Shu to’g’ri to’rtburchakning perimetrini toping.
A) 42; B) 32; C) 24; D) 46. E)to’g’ri javob berilmagan
25. Teng yonli trapetsiya burchaklaridan biri 75 ga teng. Shu trapetsiyaning qolgan burchaklarini toping.
A) 75,105,105; B) 75,95,95; C) 75,180,180; D) 15,90,90. E)to’g’ri javob berilmagan
26 Sonning aniq qiymati 1,573, taqribiy qiymati 1,57 bo’lsa, yaqinlashish xatoligini toping:
A) 0,003; B) 0,535; C) 1,335; D) 0,445. E)to’g’ri javob berilmagan
27. Hisoblang:
A) 14; B) 3; C) 11; D) . E)to’g’ri javob berilmagan
28. Kvadratning perimetri 20 sm. Uning yuzini toping.
A) 24 sm²; B) 25 sm²; C) 10 sm²; D) 16 sm². E)to’g’ri javob berilmagan
29. Teng yonli uchburchakning asosi 16 sm, yon tomoni 10 sm. Asosiga o’tkazilgan balandligining uzunligini toping.
A) 4 sm; B) 8 sm; C) 6 sm; D) 5 sm. E)to’g’ri javob berilmagan
30. Uzunligi 35 ga teng bo’lgan kesma 3 : 4 nisbatda ikki bo’lakka bo’lingan. Har bir bo’lakning uzunligini toping.
A) 16 va 9; B) 15 va 20; C) 17 va 18; D) 10 va 25. E)to’g’ri javob berilmagan


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