§. Natural va butun sonlar

A)1 B)2 C) D)

20. Hisoblang:

A)1 B) C) D)

21. Sonlarni o’sish tartibida joylashtiring.

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

22. Agar va bo’lsa , a,b va c ni o’sish tartibida joylashtiring

A)a;b;c B)b;a;c C)b;c;a D)c;b;a

23. Sonlarni kamayish tartibida joylashtiring

A)a>b>c>d B)b>a>d>c C)d>a>b>c

D) d>b>c>a

24. sonning uchdan bir qismini toping.

A)1 B)3 C)2 D)9

_25.

A) 1 B) 2 C) 11 D) 22

26. lar uchun qaysi biri to’g’ri?

A) B) C)

D)

27.

B) C) 2n+1 D)

28.

A) 100 B) 10 C) D) 20

29.Hisoblang.(1+2+2²)(1+2³+2⁶)(1+2⁹+2¹⁸)(1+2²⁷+2⁵⁴) A)2¹⁰⁸-1 B)2⁸¹-1 C)2⁶⁴+1 D)2⁸¹+2²⁷+1

30. Quyidagiifodaningqiymatinitoping.