1. Barcha ikki xonali sonlar ketma-ket yozib chiqilganda necha xonali son hosil bo’ladi?


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1. Barcha ikki xonali sonlar ketma-ket yozib chiqilganda necha xonali son hosil bo’ladi?

A) 198 B) 200 C) 178 D) 180

2. Hisoblang. 65986∙65982-65984∙65983

A) 131958 B) -2 C) 65976 D) 65980

3. 15 dan kichik va 15 bilan o’zaro tub bo’lgan sonlar yig’indisini toping

A) 59 B) 60 C) 72 D) 64

4. Dastlabki 120 ta natural son ichida 3, 5 va 7 ga bo’linmaydigan sonlar nechta?

A) 66 B) 52 C) 54 D) 50

5. 55000 sonining natural bo’luvchilari sonini toping.

A) 40 B) 64 C) 48 D) 24

6. 2 dan 59 gacha bo’lgan sonlar ko’paytmasi 7 ning qanday eng katta darajasiga qoldiqsiz bo’linadi?

A) 10 B) 9 C) 7 D) 8

7. 34n+2 ni 10 ga bo’lgandagi qoldiqni toping.

A) 4 B) 8 C) 9 D) 1

8. 40, 32 va x sonlarining EKUKi 25∙3∙5 ga, EKUBi 8 ga teng. x sonining eng kichik qiymatini toping.

A) 36 B) 24 C) 18 D) 48

9. a soni b sonidan n marta katta. Bu sonlarning EKUKi EKUBidan necha marta katta?

A) n2 B) n C) 2n D) aniqlab bo’lmaydi

10. 25 dan kichik barcha 2 xonali sonlar yig’indisi qanday raqam bilan tugaydi?

A) 8 B) 5 C) 0 D) 4

11. 18 dan 102 gacha bo’lgan sonlar ko’paytmasi nechta nol bilan tugaydi?



A) 20 B) 17 C) 21 D) 24

12. bo’lsa,

A) 3-a B) 6-a C) 3+a D) 5+a



13. Hisoblang.

A) B) C) D)

14. bo’lsa, ni hisoblang

A) 4 B) 3 C) 2 D) 5

15. nn+ nn+ nn+ nn=1024 bo’lsa, (-2)n qiymatini toping

A) -32 B) -8 C) 8 D) 16

16. 0.12 dan katta va 0.64 dan kichik bo’lgan, maxraji 50 ga teng nechta kasr mavjud?

A) 23 B) 24 C) 25 D) 26

17. Hisoblang.

A) 3 B) 4.5 C) 2.25 D) 1.8

18. Hisolang.

A) B) 1.(3) C) D)

19. a va b ning qanday qiymatlarida tenglik ayniyat bo’ladi?

A) a=-2; =2 B) a=3; b=3 C) a=2; b=-2 D) a=-2; b=-2

20. Agar bo’lsa,



A) B) C) D)

21. x6+5x5+2x3-7x2+5 ko’phadni x2+3 ga bo’lgandagi qoldiqni toping.

A) 39x-1 B) 45x-28 C) 51x+1 D) 9x+11

22. Ifodani soddalashtiring:

A) 1 B) 0 C) -1 D) 0.5

23. Soddalashtiring.

A) x-8 B) 3x-2 C) -x-2 D) 3x-8

24. Quyidagi sonlar uchun berilganlardan qaysi biri o’rinli?

K=0.6(6); l=0.66; m=0.6(5); n=0.(65).

A) k

25. Hisoblang:

A) -120 B) 5 C) 90 D) 0

26. 756∙812∙2512 ko’paytma necha xonali?

A) 36 B) 39 C) 40 D) 42

27. Hisoblang:

A) 283 B) 217 C) 208 D) 276



28. Hisoblang:

A) 27 B) 9 C) 3 D) 54

29. ; va sonlariga qoldiqsiz bo’linadigan eng kichik natural sonni toping.

A) 124 B) 84 C) 252 D) 102



30. 25!-24! Sonining butun bo’luvchilari yig’indisini toping.

A) 12000 B) 12240 C) 25344 D) 0
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