Mashina6Ю234 1 qaysi misolda ayirish to`gri bajarilgan

2-VARIANT.
1.Hisoblang.32,8-0,7·(37,08:3,6+2,05·1,4)
A)2,357 B)31,981 C)23,619 B)23,581
2.Hisoblang.40,3·17-40,3·15+2o,4·17-20,4·15
A)120,14 B)80,7 C)40,8 D)121,4

3.Hisoblang.(8,4+2,1)·4,2-14,4:2,4

A)50,1 B)44,1 C)37,11 D)38,1

4.Hisoblang.(12,6+2,73):4,2-8,75·3,4

A)32,11 B)31,11 C)23,5 D)32,1

5.Hisoblang.34,92:3,6+49,32:0,9-14 2/7·0,14

A)60,5 B)59,75 C)62,5 D)59,5

6. 1,2; 3; 15; 17; 23; ;28; 49; 64; 121; 304 sonlari ichda nechta tub son bor.

A)3 B)4 C)5 D)6

7.36sonining natural bo`luvchilari nechta?

A) 5 B)7 C)8 D)9

8.56 va16 sonlarining umumiy bo`luvchilarini nechta?

A)4 B) 3 C) 2 D)5

9. 35 ta natural son ketma –ket yozilgan 123…..3435.Shu sonni 25 ga bo`lgandagi qoldiqni toping .

A)15 B)20 C)5 D)10

10.Qaysi juftlar o`zaro juft sonlardan iborat

A) (6;8) B)(9;25) C) (1 2;15) D)hammasi

11.178 27 53 soni quyida sonlardan qaysi biriga qoldiqsiz bo`linadi.

A)3 B)10 C)5 D)9

12.E KUB (108,231,60)ni toping.

A) 108 B)231 C)60 D)3

13.8 va 10 sonlarining eng kichik umumiy kasrlarini toping .

A)8 B)10 C)40 D)18

14. 8 soat sutkaning qanday qismini tashkil qiladi

A)1/3 B)3 C)16 D)1/8 .

15.noto`g`ri kasrni aralash son ko`rinishida yozing 87/19.

A)4 11/19 B)4 7/19 C) 3 13 /19 D)4

16.X ning qanday natural qiymatida 20/x=4/5 tenglik o`rinli bo`ladi

A)25 B)36 C)45 D)81
17.3/4 va 5/6 sonlar orasida maxraji 36ga teng bo`lgan nechta kasr son bor.
A) 1 B)2 C) 3 D)4

18 .Kasrlarni taqqoslang. A=7/15 va 23/45

A) 7/15=23/45 B)7/15^23/45 C)7/15^23 D)24/45^23/45

19.Yig`indini hisoblang 3/10+1/4

A)10/20 B)11/20 C)4/10 D)4/14

20.Yig`indini hisoblang 1/15+1/3
0
A)4/15+1/3 B)10/15 C)6/15 D)7/15

21.Yig`indini hisoblang 21/40+(3/8+29/40)

A)40/40 B)53/40 C)21/8 D)1 25/40

22.AYIRMANI HISOBLANG 5/6-1/4

A)7/12 B)4/12 C)4/10 D)7/10

23.Ayirmani hisoblang 7/8-1/4

A)6/8 B)5/8 C)6/4 D)7/8

24 .Amallarni bajaring 12-4/9

A)105/9 B)12 4/9 C)11 5/9 D)11 4/9

25 .Tenglamani yeching X-1/3=2/5

A)x=10/15 B)1/3 C)2/5 D)11/1