312 va 12 sonlarning umumiy bo’luvchilari nechta?

Matematika.

1. 
   312 va 12 sonlarning umumiy bo’luvchilari nechta? (NBS)
   

A)2 B)4 C)3 D)6

2. 
   5 ta tuxum 5 minutda qaynaydi, 2 ta tuxum necha minutda qaynaydi?
   

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

3. 
   kesmada nechta o’zaro tub sonlar jufti bor?
   

A)5 B)6 C)4 D)7

4. 
   Sonlarni o’sish tartibida joylashtiring.
   

A) B) C)

D)

5. 
   Hisoblang.
   

A)540 B)580 C)620 D)1400

6. 
   A mulohaza ‘’(14;63) sonlari o’zaro tub sonlar hisoblanadi’’ B mulohaza ‘’3 ga bo’lingan son 9 ga ham bo’linadi’’ C mulohaza ‘’777 soni eng katta palitron son hisoblanadi’’.Ushbu mulohazalardan qaysi biri yolg’on?
   

A)hammasi B)A va C C)A D)B va C

7. 
   Tenglamani yeching.
   

A)5 B)-4,5 C)6,5 D)7

8. 
   Hisoblang.
   

A)2 B)1 C) D)

9. 
   Soddalashtiring.
   

A)0 B) C)-8ab D)

10. 
    Ushbu
    

(a+3b)(a+b+2) (a+b)(a+3b+2)

Ifodani ko’phad shaklida yozing.

A)2a-b B)a-2b C)4a+2b D)4b

11. 
    Soddalashtiring.
    

A)9 B)9-4b C)9+4b D)-9

12. 
    Amallarni bajaring.
    

A)1,125 B)1,2 C)1,5 D)0,75

13. 
    Vali qandaydir sonni o’yladi va unga o’ylagan sonini qo’shdi, natijani 2 ga ko’paytirib 7 ga bo’ldi. Shunda 4 soni hosil bo’ldi. Vali qanday sonni o’ylagan.
    

A)7 B)8 C)13 D)5

14. 
    Eng katta ikki xonali natural sondan eng kichik uch xonali butun sonni ayirsak nechchi hosil bo’ladi?
    

A)900 B)-900 C)1098 D)-1098

15. 
    Kubni qirralarining soni, parallelepipedni qirralarining sonidan nechta ko’p.
    

A)5ta B)1ta C)3ta D)teng