1. ko’paytmani natural bo’luvchilarining yig’indisini toping

1. ko’paytmani natural bo’luvchilarining yig’indisini toping:
A)28302 B)22981 C)22971 D)19871
2. va tenglamaning ildizlari bo`lsa, yig`indining qiymati nimaga teng.
A) -4 B) 4 C) -20 D) 20
3. 8b + (5 − (b − (5b + 2))) ifodani soddalashtiring.
A) 12b + 7 B) 2b + 3 C) 2b + 7 D) 13b + 3
4. O’zaro teskari sonlarni toping.

A) 1;3;4 B) hammasi C) 2;3;4 D) 1;2;3
5. ni hisoblang.
A) -10 B) C) D) 10
6 . tengsizlikning manfiy butun echimlari yigindisini toping.
A) -9 B) -12 C) -5 D) -6
7. k ning qanday qiymatlarida tenglamalar sistemasi cheksiz ko’p echimga ega bo’ladi?
A)-1 B)-2 C)0 D)1
8. ifoda natural son bo’ladigan n ning barcha natural qiymatlari yig’indisini toping?
A)22 B)7 C)11 D)24
9. Kasirni qisqartiring:

_{A)7,5 B)15 C)30 D)-7,5}
10 . Hisoblang:
A) B) C) 1,25 D) 0,95
11. Soddalashtiring.
A) B) C) D)
12. Agar bo`lsa ni hisoblang.
A) 7 B) 22 C) 19 D) 23
13.Dengiz suvi tarkibida 5% tuz bor. Eritmada 1% tuz bo'lishi uchun 10 kg dengiz suviga qancha chuchuk suv qo'shish kerak?
A) 40 B) 30 C) 20 D) 10
14. ko`paytma necha xonali son?
A) 40 B) 39 C) 41 D) 38
15. 24 va 30 sonlarining EKUB va EKUK lari ko`paytmasini toping.
A) 540 B) 780 C) 720 D) 660
16. bo`lsa, ni toping.
A) 10 B) 6 C) 2 D) 18
17. Soddalashtiring.
A) B) C) D) 6

18. Hisoblang.

A) B) C) D)
19. a ning qanday qiymatida
ko'phadning koeffitsiyentlari yig’indisi 7 ga teng bo’ladi?
A) −1 B) −4 C) 2 D) 3
20. tenglamaning ildizlaridan biri 5 ga teng. Shu tenglamaning barcha koeffitsiyentlari yig’indisini toping.
A)15 B) 16 C) 35 D) 36
21. Agar ni soddalashtiring.
A) 2m-2k B) -2m C) 2k-2m D) -2n
22. ni soddalashturing.
A) B) C) D)
23. tengsizlikni yeching.
A)
B)
C)
D)
24. Ildizlari tenglamaning ildizlariga qarama-qarshi sonlardan iborat bo’lgan tenglamani tuzing.
A) B) C) D)
25.4m² 3dm² 4sm² necha kadrat santimetr bo’ladi?
A) 41034 B) 40244 C) 43004 D) 40304
26. Agar , bo`lsa, ni hisoblang.
A) B) C) D) 15
27. Agar barcha lar uchun

Ayniyat bajarilsa, ni toping.
A) 2 B) 9 C) –4 D) –2
28. a³x²+b³x-a³=0, a≠0 tenglama nechta yechimga ega?
A) 1 ta B) 2 ta C) cheksiz ko'p D) 8
29.Ikki musbat sonning o`rta arifmetigi 20 ga, o`rta geometrigi esa 12 ga teng. Shu sonlarni toping.
A) B) C) D)
30. ko’phadni ko’paytuvchilarga ajrating.
A) B) Ko’paytuvchilarga ajralmaydi
C) D)