1-variant
1. 1; 2; 3; 15; 17; 23; 28; 49; 64; 121; 304; 324; 1001 sonlari ichida nechta tub son bor? A) 3; B) 4; D) 5; E) 7.
2. 36 sonining natural bo'luvchilari nechta? A) 5; B) 7; D) 8; E) 9.
3. 56 va 16 sonlarining umumiy bo'luvchilari nechta? A) 4; B) 3; D) 2; E) 5.
4. 35 ta natural son ketma-ket yozilgan: 123...3435. Shu sonni 25 ga bo'lgandagi qoldiqni toping. A) 10; B) 20; D) 5; E) 0.
5. 1 782 753 soni quyidagi sonlardan qaysi biriga qoldiqsiz bo'linadi? A) 3; B) 10; D) 5; E) 9.
6. Qaysi juftlik o'zaro tub sonlardan iborat? A) (6; 8); B) (9; 25); D) (12; 15); E) hammasi.
7. EKUB (168, 231, 60) ni toping. A) 168; B) 231; D) 60; E) 3.
8. 8 va 10 sonlarining eng kichik umumiy karralisini toping. A) 8; B) 10; D) 40; E) 18.
9. Agar a va b ixtiyoriy natural sonlar bo'lsa, u holda 2a + 8b ifoda quyidagi sonlarning qaysi biriga qoldiqsiz bo'linadi? A) 2; B) 4; D) 3; E) 10.
10. 45321 soni quyidagilarning qaysi biriga qoldiqsiz bo’linadi? A) 3 B)2 D) 10 E) 5
11.EKUB (65,95) ni toping A) 1 B) 5 D) 3 E) 4
12.Noto'g'ri kasrni aralash son ko'rinishida yozing: 87/19 . A) 4*11\19 B)4*7\17 D)3*30/19 E)4.
13.3/4 va5/6 sonlar orasida maxraji 36 ga teng bo’lgan nechta kasr son bor? A) 1 ta B) 2 ta D) 3 ta E) 4 ta
14. x ning qanday natural qiymatida 20/x- =4/5 tenglik o'rinli bo'ladi? A) 25; B) 36; D) 45; E) 81;
15.77/84 kasrni surati va maxrajini 7 marta kamaytiring A) 7/12 B)11/12 D) 77/12 E) 7/11
1-variant javoblari
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2-variant
1. Amallarni bajaring: 7,23-(1,8+ 4,53); a) 0,9; b) 0,8; c) 1,9; d) 2,8
2. O'nli kasrni oddiy kasr ko'rinishida yozing va hisoblang.
a) 12,5 b) 10,21 s) 14,08 d) 17,5
3. Yirikroq o'lchov birligiga o'tkazing va hisoblang 3 kg + 4 sr - 2,3 sr;
a) 2,03sr b) 0,73 sr s) 1,73 sr d) 1,73 sr;
4. Birinchi xaridorga 18,5 kg, ikkinchisiga undan 4,8 kg ko'p shakar sotildi. Uchinchi xaridor ikkinchisiga qaraganda 8,4 kg kam shakar oldi. Shundan so'ng qopda 4,2 kg shakar qoldi. Dastlab qopdagi shakar necha kilogramm edi? a)76,8 kg b)78,6 kg s) 87,6 kg d) 88,7 kg
5. Mohira 21,8 kg, Otabek undan 2,5 kg kam qulupnay terdi. Xadicha esa Otabekdan 3,2 kg kam qulupnay terdi. Uchala bola birgalikda qancha qulupnay terishgan?
a) 67,2 kg b) 87,9 kg s)57,2 kg d) 58,2 kg
6. Men bir son o'yladim, unga 1,5 ni qo'shdim, yig'indidan 4,8 ni ayirdim, natijaga 9,5 ni qo'shdim. Yig'indidan 4,8 ni ayirgan edim, 7,2 chiqdi. Men o'ylagan sonni toping.
a) 5,9 b) 5,8 s) 8,7 d) 6,8
7.Tenglamani yeching: (3,543 + 7,357) - (x - 5,1) = 75,83 - (29,81 + 42,02);
a) x=66,4 b) x = 84,6 s ) x = 46,8 d) x=64,8;
8. Tenglamani yeching: (35,401 - 17,399) - (7,002 -x) = 68,72- (44,31 -22,29).
a) x = 52,7 b) x = 72,8 s) x = 35.7 d) x=55,7.
9. Uzunligi 10,8 m bo'lgan xaridan 4 ta g'o'la arralab olindi. Birinchi g'o'laning uzunligi 0,8 m bo'lib, har bir keyingi g'o'la avvalgisidan 25 sm uzun. Xarining qolgan qismining uzunligini toping. a) 6,1 m b) 7,4 m s) 7,1 m d)8,1 m;
10. Uchburchakning bir tomoni 8,9 sm, ikkinchi tomoni undan 3,2 sm qisqa. Agar shu uchburchakning uchinchi tomoni natural sonda ifodalansa, u qanday qiymatlar qabul qilishi munkin?
a) x = 6; 7; 8;9; 10;11;12;13;14 bo’lishi mumkin
b) x = 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14 bo`lishi mumkin.
s) x = 7; 8; 9; 10; 11; 12; 13; 14 bo`lishi mumkin
d) x = 11; 12; 13; 14 bo`lishi mumkin
11.Siniq chiziqning birinchi bo'g'ini 2,4 dm ga teng. Har biij bo'g'in awalgisiga qaraganda 1,6 dm uzun. Agar shu siniq chiziqning uzunligi 28 dm bo'lsa, u necha bo'g'inli?
a) 3 ta bo’g’in b) 4 ta bo’g’in s) 5 ta bo`gin d) 6 ta bo’g’in
12.Tenglamani yeching: (53,725 -x) + 4,56 = 24,854 - 12,604;
a) 46,07 b) 47,087 s) 48,076 d) 46,035;
13.Amallarni bajaring: 6,2-(3,4-2,8); a) 6,7 b) 5,6 s) 6,5 d) 13,6;
14. Hisoblang: 8,7-(3,8+l,3); a) 6,2 b) 2,6 s) 5,8 d) 5,9
15. Qulay usul bilan hisoblang: 7,48 + 2,39 + 3,52 + 8,61;
a) 33 b) 26 s) 22 d 92;
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3-variant
1. 1;2;3;15;17;23;28;49;64;121;1001; sonlari ichida nechta tub son bor A)3 B)4 C)5 D)7
2.36 natural bo`luvchilari nechta A)5 B)7 C)8 D)9
3. 1782753 soni quyidagi sonlardan qaysi biriga qoldiqsiz bo`linadi A)3 B)10 C)5 D)9
4.Katerning daryo oqimi bo`ylab va oqimga qarshi tezliklari yig`indisi 30 km/soat. Katerning turg`u suvdagi tezligini toping A)15 B)16 C)10 D)20
5.Noto`g`ri kasrni aralash son ko`rinishida yozing A)4 B) 4 C) 3 D)4
6.xning natural qiymatida tenglik o`rinli bo`ladi A)25 B)36 C)45 D)81
7. sonlari orasida maxraji 36 teng bo`lgan nechta kasr son bor? A)1 B)2 C)3 D)4
8. Hisoblang. A) B) C) D)
9. Boshlang`ich sinflarda o`qiydigan o`quvchilarning qismini qiz bolalar tasjkil qiladi. O`g`il bolalar qiz bolalardan 252 taga ko`p Boshlang`ich sinfda nechta bolar o`qiydi.
A)840 B)640 C)540 D)740
10.Hisoblang. A) C)
11.Tenglamani yeching. A)10 B)12 C)17 D)18
12.Qisqarmas kasrni toping A) C)
13.Do`komga keltirilgan 8 tonna undan 2 tonna un sotildi. Qancha un qoldi.
A) B) C) 5 D) 3
14.Zig`ir urug`ida 3/10 qism yog` bor. 2,5 tonna zig`ir urug`idan qancha yog` chiqadi.
A) C)
15. 2 va 1 sonlarning ayrimasiga teskari sonni toping A) 1 B) 1 C) 2 D)
Savol
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4-variant
1.O’nli kasrb ko’tinishida yozing. 120:100 A)12,6 B)100 S)1,20 D)0,126
2.To’nnada ifodalang 4 t 320 kg A)4320 kg B)4,320 t S)43,2 t D)4320 t
3.Kubning qirrasi 6 sm .Uning hajmini toping? A)256 sm2 B)36 sm3 S) 216 sm3 D) 6sm3
4.Tenglamani yeching.15,6:x=2,6 A)2,6 B) 4 S) 5 D) 6
5.EKUB (24,90) ni toping A) 6 B) 2 S)4 D) 3
6.Ayirmani toping: - A) B) S) D)
7. 17 82 753 soni ushbu sonlardan qaysi biriga qoldiqsiz bo’linadi. A) 3 B) 10 S) 5 D) 9
8.Yig’indini toping. + + A) B) S) D)
9. 56 va 16 sonlarining umumiy bo’luvchilari nechta? A) 4 B) 60 S)2 `D) 5
10. Ko’paytirishni bajaring: A)19/20 B) 60/19 S) 3 D)3
11.To’g’ri burchakning bo’yi 12 dm ,eni undan 3 dm qisqa.Shu to’rtburchakning perimetrini toping.
A) 9 B) 44 S) 21 D) 22
12.Hisoblang. 8 A) 7 B) 6 S) 8 D) 1
13. 5 ning qismini toping? A)10 B) S) D) 3
14.Ifodaning qiymatini toping. 9 X=3 Y=5 A) 67 B)76 S) 82 D) 45
15.2,5+ songa teskari sonni toping.
A) B) S) D)
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