Sinf matematika 3-variant

6-SINF Matematika 3-variant

1. 
   Tenglamani yeching: .
   

A) 1 B) 2 C) 3 D) 1,1.

2. 
   To’g’ri to’rtburchak shaklidagi yer maydoning bo’yi 500 m, eni esa 400 m. 1ga yerdan 45sr paxta hosili olingan bo’lsa, bu maydondan jami qancha hosil ko’tarilgan?
   

A) 9 t B) 450 sr C) 900 t D) 90 t.

3. 
   Qulay usul bilan hisoblang: 7,48 + 2,39 + 3,52 + 8,61.
   

A) 11 B) 22 C) 30 D) 16.

4. 
   Tenglamani yeching: 14 – x = 3,81 + 7,12.
   

A) 3,07 B) 4,93 C) 4,07 D) 10,93.

5. 
   To’rtta sonning o’rta arifmetigi 12,6 ga teng. Har bir son o’zidan avvalgisidan 2,4 ga ortiq. Sonlardan eng kattasining eng kichigiga nisbatini toping.
   

A) 18 B) 1,8 C) 0,8 D) 180.

6. 
   Hisoblang: .
   

A) 5,8 B) 7,8 C) 1 D) 2.

7. 
   Hisoblang: .
   

A) 32,11 B) 31,11 C) 23,5 D) 38,1.

8. 
   To’g’ri to’rtburchakning bo’yi 8.3 sm, perimetri 31 sm. Shu to’g’ri to’rtburchakning yuzini toping.
   

A) 5,97 sm² B) 59,76 sm² C) 69,76 sm² D) 70,73 sm².

9. 
   Teng tomonli uchburchakning perimetri 28,8 sm ga teng. Uning tomoni uzunligini toping.
   

A) 9,6 sm B) 9,16 sm C) 8,6 sm D) 9/06 sm.

10. 
    Aylana uzunligi 25,12 sm ga teng. Aylana radiusini toping.
    

A) 6,28 sm B) 3,5 sm C) 4 sm D)3,14 sm.

11. 
    Proporsiyaning noma’lum hadini toping: 22,5:x=45:6.
    

A) 2,5 B) 6 C) 3 D) 4,5.

12. 
    Ikki shahar orasidagi masofa 480 km, xaritaning masshtabi 1:1000000. Xaritada bu shaharlar orasidagi masofa qancha bo’ladi?
    

A) 4,8 sm B) 24 sm C) 9,6 sm D) 48 sm.

13. 
    180 ning 20% i bilan 12% i 24 ga teng bo’lgan sonni ko’paytiring.
    

A) 720 B) 7200 C) 3888 D) 3600.

14. 
    Yig’indini toping: (-51+40)+(-78+47).
    

A) 42 B) -42 C) -11 D) -31.

15. 
    Hisoblang: (-1)³:(-3)²+(-2)³(-1)⁴-(-1)⁸:(-1)⁷.
    

A) 10 B) -10 C) -11 D) 12.

16. 
    Amallarni bajaring: (-8)^.5+(-3)^.6-(-28).
    

A) 30 B) -30 C) -584 D) 86.

17. 
    Tenglamani yeching: 3(-3)+51=6-12.
    

A) -57 B) -6 C) -19 D) 19.

18. 
    sonlarni kamayish tartibida yozing.
    

A) a>b>c B) a>c>b C) c>b>a D) b>c>a.

19. 
    Tenglamani yeching: .
    

A) B) C) D)

20. 
    Bir tokchada ikkinchisiga qaraganda 3 marta ko’p kitob bor. Ikkala tokchadagi jami kitoblar 108 ta bo’lsa, har bir tokchada nechtadan kitob bor?
    

A) 60; 48 B) 75; 33 C) 28; 80 D) 81; 27.
21. Kasrning surati maxrajidan 17 ga kam. Kasr qisqartirilgach ga teng bo’ladi. Dastlabki kasrni toping.
A) B) C) D)

22. Qaysi biri to’g’ri? 1) 2) 3)

A) 3 B) 2 va 3 C) 1 va 2 D) 1 va 3

23. O’sib borish tartibida yozilganini toping.

A) B) C) D)

24. Kamayib borish tartibida yozilganini toping.

1) 2) 3)
A) 2 B) 1 C) 3 D) 1 va 2

25. Kasrni qisqartiring: .

A) B) C) D)
7-SINF

1. 
   va bo’lsa, ning qiymatini toping.
   

A) 7 B) 3 C) 5 D) 17.

2. 
   p ning qanday qiymatlarida 7x-12p=7 tenglama manfiy ildizga ega?
   

A) B) C) D) .

3. 
   Kasrni qisqartiring: .
   

A) B) C) D) .

4. 
   Ikki sonning ayirmasi 27 ga teng. Agar birinchi sonni ikinchisiga bo’lsak, bo’linma 4 ga va qoldiq 3 ga teng chiqadi. Berilgan sonlarni yig’indisini toping.
   

A) 31 B) 38 C) 43 D) 29.

5. 
   Quyidagi sonlardan qaysi biri ga teng emas?
   

A) B) C) D) .

6. 
   Ikkita buyumning birgalikdagi bahosi 43500 so’m turadi. Agar birinchi buyumning bahosi 10% kamaytirilsa, ikkinchisiniki esa 15% orttirilsa, ular birgalikda 45100 so’m turadi. Birinchi buyumning dastlabki bahosini toping.
   

A) 19700 B) 17320 C) 23800 D) 21830.

7. 
   ni soddalashtiring.
   

A) -2x-2y B) -2y C) 2y D) 2x.

8. 
   ga teskari sonni toping.
   

A) B) C) D) .

9. 
   a(b-c)-b(c-a)-c(a-b) ni soddalashtiring.
   

A) 2ab-abc B) 0 C) -2ac D) 2ab-2ac.

10. 
    (2y-3z)³-(x-3x)³-(2y-x)³ ko’phadni ko’paytuvchilarga ajrating.
    

A) -3(2y-3z)(x-3z)(2y-x) B) 6(2y-x)(2y-3z)(x-3z)
C) ko‘paytuvchilarga ajralmaydi D) 3(2y-x)(2y-3z)(x-3z).

11. 
    Sement va qumdan iborat 30 rukg qorishmaning 60% ini sement tashkil etadi. Qorishmaning 40% I sementdan iborat bo’lishi uchun qorishmaga qancha qum qo’shish kerak?
    

A) 15 B) 10 C) 12 D) 18.

12. 
    ifoda natural son bo’ldaigan n ning natural qiymatlari nechta?
    

A) 2 B) 5 C) 3 D) 7.

13. 
    To’g’ri burchakli uchburchakning o’tkir burchagi 60⁰ ga, gipotenuzaga tushirilgan balandlik 12 ga teng. Berilgan uchburchakning kichik kateti qancha?
    

A) B) C) D) 24.

14. 
    Uchburchak ikkita burchagining qiymatlari nisbati 5:9 kabi, uchinchi burchagi shu burchaglarning kichigidan 29⁰ ga kichik. Uchburchagning eng kichik burchagini toping.
    

A) 36⁰ B) 26⁰ C) 40⁰ D) 50⁰.

15. 
    Teng yonli uchburchakning asosidagi burchak uchidagi burchagning 75% iga teng. Uchburchakning uchidagi burchagini toping.
    

A) 135⁰ B) 72⁰ C) 120⁰ D) 90⁰.

16. 
    To’g’ri burchakli trapetsiyaning asoslari 12 ba 9 ga, yuzi esa 42 ga teng. Shu trapetsiyaning perimetrini toping.
    

A) 42 B) 25 C) 30 D) 20.

17. 
    Uchburchaksning ikkita burchagi yig’indisi 70⁰ ga teng. Shu burchaklarning bissketrissalari kesishishidan hosil bo’lga burchaklardan kichigi necha gradusga teng?
    

A) 40⁰ B) 45⁰ C) 35⁰ D) 50⁰.

18. 
    Ikki parallel to’g’ri chiziqni uchinchi to’g’ri chiziq kesib o’tganda hosil bo’lgan ichki bir tomonli burchaklardan biri ikkinchisidan 17 marta kichik. Shu burchaklardan kichigini toping.
    

A) 10⁰ B) 20⁰ C) 15⁰ D) 24⁰.

19. 
    Uchburchakning birinchi tomoni x sm (x>12), ikkinchi tomoni undan 8 sm qisqa, uchinchi tomoni esa birinchisidan 4 sm uzun. Shu uchburchakning perimetrini toping.
    

A) 3x+12 B) 3x-4 C) 3x-12 D) 3x+4.

20. 
    va burchaklar qo’shni burchaklar. Agar bo’lsa, va burchaklar ayirmasini toping.
    

A) 60⁰ B) 40⁰ C) 20⁰ D) 80⁰.