1. Agar abc, bca, cab uch xonali natural sonlar yig’indisi 777 ga teng bo’lsa, a+b+c ni toping ?

1.Agar abc, bca, cab uch xonali natural sonlar yig’indisi 777 ga teng bo’lsa, a+b+c ni toping ?

1. 
   7 B) 6 C) 8 D) 2
   

2. Besh xonali x734y sonini 55 ga bo’lganda natural son hosil bo’ladi. x ning barcha qiymatlari yig’indisini toping.
A) 14 B) 9 C) 3 D)11
3.Hisoblang A)24 B)56 C)65 D)72
4. Agar a natural sonni 64 ga bo’lganda bo’linma n, qoldiq ga teng bo’lsa, a sonining eng katta qiymatini toping. A)219 B)136 C) 65 D)262
5. Hisoblang:1 ∙ 4 + 2 ∙ 7 + 3 ∙ 10 + ⋯ … . . +6 ∙ 19 A)294 B)448 C)320 D)500
6. a ∙ b ∙ c = 7 bo’lsa A) B) C) 1 D)
7.Agar = 27, =16 bo’lsa a*b ning qiymatini toping ? A)13 B)11 C)12 D)10
8. a = 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + ⋯ + 40 ∙ 41 va b= 5 ∙ 4 + 10 ∙ 6 + 15 ∙ 8 + ⋯ + 200 ∙ 82 bo’lsa ? ni toping A) B) C) D)
9. a va b natural sonlar bo’lib ularning, eng katta umumiy bo’luvchisi 6 ga teng. Agar 4a=3b tenglik bajarilsa, a +b yig’indini hisoblang. A) 42 B) 36 C) 24 D) 72
10. 96 va 84 sonlarining eng katta umumiy bo`luvchisini toping? A)16 B)6 C)8 D)12
11. 4; 5 va 8 ga qoldiqsiz bo’linadigan eng kichik natural sonning ikkilanganini toping?
A)40 B)120 C)60 D)80
12. EKUB (M;N) = 10 EKUK (M;N) = 60 bo’lsa A*B ni toping ? A)300 B)60 C)600 D)120
13. 12 va 𝑘 sonlarining 𝐸𝐾UBi 6, 𝐸𝐾U𝐾i 60 ga teng bo’lsa, 𝑘 ni toping? A)30 B)24 C)15 D)18
14.Bir necha natural sonlarning yig’indisi 46 ga teng. Agar shu sonlarning har biriga 3 ni qo’shib hisoblansa yig’indi 73 ga teng bo’ladi. Yig’indida nechta son ishtirok etgan ? A)16 B)8 C)9 D)14
15.2324252627……7172 sonning raqamlari yig’indisini toping ? A) 431 B)440 C)462 D)423
16. Hisoblang. 467*251+123*502-231*753 A) 2510 B)5020 C)7530 D)3765
17. yig’indini hisoblang A) B) C) D)
18. abc va ab mos ravishda uch va ikki xonali sonlar abc+ab=1073 bo’lsa a+b+c yig’indini hisoblang ? A)16 B)22 C)21 D) aniqlab bo’lmaydi
19. Hisoblang. 17*15+17*18-33*34+24*18+18*9 A)66 B)34 C)68 D)33
20. n natural son bo’lsa quyidagilardan qaysi biri doimo juft ?
A) 2021*n+ -5 B) 2012*n+ +2 C) 2015* +14* - D) 404* +202* -
21. 570 va 450 sonlarining tub bo’lmagan umumiy bo’luvchilari nechta ? A)5 B)6 C)7 D)8
22. , x*y*z 0 va x*z 0 bo’lsa x,y va z larning ishoralarini toping A) +,+,- B) +,-,+ C) -,+,- D) -,-,+
23. a=5 , b=2 bo’lsa yig’indi quyidagilardan qaysi biriga teng ?
A) a+b B) 2*a+b C) 3*a-b D) 4*a+3*b
24.Quyidagi sonlardan qaysi biri 0.(3) gat eng emas ? A) 0,(333) B) C)0,(9) D)
25 Soddalashtiring . A) B) C) D) 13
26. n-3 ta n-3 ning ko’paytmasining n-3 ta n-3 yig’indisiga nisbatini toping. A) B) C) D)
27. : va sonlariga qoldiqsiz bo’linadigan eng kichik natural sonni toping A) 364 B) 120 C) 90 D) 180
28. +. …….+. ni hisoblang A) . B) C) D)
29 Agar . bo’lsa ni hisoblang A) B) C) 0 D)
30. Hisoblang ………….
A) B) C) D)

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
A	D	B	A	A	A	C	B	A	D	D	C	A	C	B
16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
B	D	B	D	C	A	B	A	C	C	C	D	C	A	B