To’g’rito’rtburchakningbo’yi8 smgatengenibo’yidan 1,5martauzun. To’g’rito’rtburchakningyuzini toping

1litrdengizsuvidao’rtacha 0,00001 mg oltin bor. 1km³dengizsuvidaqanchaoltinbor?

A)8t B)20t C)10t D)18t

19. 
    Yig`indinihisoblang:
    

A) B) C) D) 1

20. 
    
    
21. 
    Soddalashtiring:
    

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

22. 
    va bo`lsa, u holda
    

A)8 B) -8 C) 12 D) -12

23. 
    Soddalashtiring:
    

A) B) C) D)

24. 
    
    

A) B) C) D)

25. 
    Katakdaquyonlarvatovuqlar bor. Agar oyoqlarsoni 314 ta vaboshlar 100 ta bo`lsa, quyonlarnechta?
    

A)57 B) 60 C) 63 D) 66

26. 
    hisoblang:
    

A)2000 B)2004 C)2001 D)2006

Nazorat ___ _______________________________