2–bob. Butun va ratsional sonlar butun sonlar ustida amallar

BOYMURODOV DOSTONBEK

2–BOB. BUTUN VA RATSIONAL SONLAR

7. BUTUN SONLAR USTIDA AMALLAR

1. Agar bo’lsa, quyidagi ifodalarning qaysi birining qiymati har doim butun son bo’ladi?

A) B) C) D)

2. Koordinatalari 1,2 va 6,5 bo’lgan sonlar orasida nechta butun son bor?

A) 6 B) 9 C) 7 D) 8

3. (35):7725:(25)(91):(7) ifodaning qiymati 3 dan qancha katta?

A) 11 B) 29 C) 18 D) 8

4. bo’lsa, yig’indining qiymatini toping.

A) 8900 B) 10200 C) 12900 D) 13090

5. bo’lsa, 26a28b45 ni toping.

A) 16 B) 15 C) 15 D) 16

6. To’g’ri javobni ko’rsating. Bu yerda [a]a sonning butun qismi.

A) agar bo’lsa,

B) agar bo’lsa,

C) agar bo’lsa,

D) agar bo’lsa,

7. ifodaning barcha natural qiymatlarining o’rta arifmetik qiymatini toping.

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

8. Qaysi son yarmining qismidan 3 ni ayirsa, 7 ga teng bo’ladi?

A) 36 B) 45 C) 54 D) 72

9. ni hisoblang. Bu yerda [a]a sonning butun qismi.

A) 100 B) 120 C) 125 D) 140

10. Agar uch xonali natural sonlar yig’indisi 777 ga teng bo’lsa, ni toping.

A) 7 B) 6 C) 8 D) 2

11. tenglikda x va y sonlar 5 dan kichik natural sonlar bo’lsa, y ning qiymatini toping.

A) 1 B) 3 C) 4 D) 0

12. x, y, z butun sonlar bo’lib, va bo’lsa, x, y, z sonlarni o’sish tartibida joylashtiring.

A) x,y,z B) z,y,x C) y,x,z D) y,z,x