1. Agar bo’lsa, ning qiymatini toping. A 110 b 125 c 80 d 100

1-variant

1. Agar bo’lsa, ning qiymatini toping.

A) 110 B) 125 C) 80 D) 100
2. Ko’paytuvchilarga ajrating. b²+ab-2a²-b+a
A) (a-b)(2a-b) B) (a+b)(2a-b-1) C) (a-b)(2a-b-1) D) (b-a)(b+2a-1)
3. Ifodaning eng kichik qiymatini toping. (2a-1)(2a+1)+3b(3b-4a)
A) -1 B) 0 C) -2 D) 1
4. 7⁶+27 soni quyidagilarning qaysi biriga qoldiqsiz bo’linadi?
A) 51 B) 49 C) 23 D) 13
5. Soddalashtiring.
A) m-1 B) C) 1 D)
6. Kasrni qisqartiring.
A) B) C) D)

7. ifoda n ning nechta natural qiymatida natural son bo’ladi?

A) 6 B) 3 C) 5 D) 4
8. Hisoblang.
A) B) C) D)
9. Quyida keltirilgan tengliklardan qaysilari ayniyat?
1) (x+a)(x-b)=x²-(a-b)x-ab;
2) (x-c)(x-d)=x²-(c+d)x+cd;
3) (x-e)(x+d)=x²-(e-d)x-ed;
4) 6ab+(2a³+b³-(3ab²-(a³+2ab²-b³)))=3a³-ab²+6ab.
A) 2;3;4 B) 1;2;3 C) 1;2;4 D) 1;3;4.
10. kasrni qisqartiring.
A) B) C) D)
11. ning x=0,25 dagi qiymatini toping.
A) 3 B) 6 C) 5 D) 4
12. 3¹⁰+2¹¹ yig’indining oxirgi raqamini toping.
A) 3 B) 5 C) 1 D) 7
13. ni hisoblang.
A) 0,32 B) 32 C) 6,4 D) 3,2
14. 842 sonining o’ng tomoniga qanday raqam yozilsa, hosil bo’lgan son 36 ga qoldiqsiz bo’linadi?
A) 2 B) 6 C) 4 D) 8
15. Soddalashtiring.
A) -1 B) a+b C) D)
16. Agar bo’luvchi x-2 ga, bo’linma x+3 ga, qoldiq 5 ga teng bo’lsa, bo’linuvch nimaga teng?
A) x²-3x+6 B) x²-5x-6 C) x²+x-1 D) x²-5
17. Soddalashtiring.
A) m+12 B) 4+m C) m-2 D) 4
18. Ushbu (a+b)(a+b+2)-(a-b)(a-b-2) ni ko’paytuvhilarga ajrating.
A) 2(a+b)(b+1) B) 4a(b+1) C) 2a(b-1) D) 4a(b-1)
19. 630 va 198 ning umumiy bo’luvchilari nechta?
A) 4 B) 9 C) 8 D) 6
20. Soddalashtiring.
A) 1/6 B) 1/8 C) ¾ D) ¼
21. 4¹² ni 9 ga bo’lgandagi qoldiqni toping.
A) 1 B) 2 C) 4 D) 7
22. ifodaning qiymatini toping.
A) B) C) D)
23. abc va ab mos ravishda 3 va 2 xonali sonlar bo’lib, abc+ab=1073 bo’lsa, a+b+c yig’indini hisoblang.
A) 16 B) 22 C) 21 D) aniqlab bo’lmaydi.