Matematika 1-variant

Matematika 8-variant

1. 
   Hisoblang:
   

A) 31 B) 61 C) 43 D) 42

2. 
   Tenglamani yeching:  .
   

A) 7 B) 17 C) 24 D) 31

3. 
   Soddalashtiring. 
   

A)  B)  C)  D) 

4. 
   Hisoblang: 
   

1. 
   7   
   

5. 
   180 gramm suvga 70 gramm tuz aralashtirildi. Hosil bo’lgan aralashmaning necha foizi tuzdan iborat bo’ladi?
   

A)28 B) 25 C) 30 D) 22

6. 
   Hisoblang. 
   

A) 11 B)  C)  D) 
7. Soddalashtiring:
A) 2a B) 2b C) 2a+2b D)a – b
8. x³ – 3x² +5x – 6 ko’phadni x-2 ga bo’lishdagi qoldiqni toping.
A) 3 B) 0 C) 1 D) 12
9. nisoddalshtiring
A) x/y B) - x/y C) x/3y D) - 2y/x
10. Ifodani soddalashtiring: 2(n+ m)+5(3m+7n) – 25n

A) 12n+17m B)20m+n C) 20n+11m D) 18m+n

11. Sonlar ketma-ketligidagi keyingi sonni toping: 0; 1; 5; 14; 30; …

A) 46 B) 50 C) 55 D) 60
12. proporsiyadan x ni toping
A) 44/17 B) 45/16 C) 3 D) 44/5

13. 40% i 12 ga teng bo`lgan sonni toping

A) 52 B) 30 C) 24 D) 18
14.  ni 8 ga bo`lgandagi qoldiqni toping
A) 2 B) 3 C) 4 D) 1
15. Soddalashtiring.  

16. Hisoblang. 

17. Ifodaning qiymatini toping. 

18.  ning oxirgi raqamini toping. 

19. Quyidagi sonlardan qaysi biri  ga qoldiqsiz bo'linmaydi? 

 raqamining qanday qiymatida  soni  ga qoldiqsiz bo'linadi?

A)1 B)2 C)3 D) 5
21. Ifodani soddalashtiring. =
A) abc; B) a²b⁴c²; C) ab²c; D) abc²
22. Soddalashtiring A) B)  C)  D) 1
23. 7⁶ – 27 soni quyidagilarning qaysi biriga qoldiqsiz bo’linadi?
A) 51 B) 49 C) 45 D) 23
24. m ning qanday qiymatida m(mx-1)=9x+3 tenglama cheksiz ko’p ildizga ega?
A) m=0 B) m=3 C) m=-3 D) m=-1
25.  ning qiymatini toping? A) 2 B) 2 C) 2 D) 3