Matematika. 7 sinf. Test savollari.
1. Trapetsiyaning o`rta chizig`i 15 sm ga teng, uning asoslaridan biri ikkinchisidan 6 sm katta. Trapetsiya asoslarini toping.
A) 16 sm, 21 sm B) 10 sm, 20 sm C) 12 sm, 18 sm D) 14 sm, 16 sm
2. Rombning tomonlaridan biri bilan uning diagonallari hosil qiladigan burchaklarning nisbati 4:5 ga kabi bo`lsa, rombning burchaklarini toping.
A) 800; 1000 B) 600; 1200 C) 450; 1350 D) 300; 1500
3. Tog`ri to`rtburchakning eni 7 sm ga teng, bo`yi undan 3 marta katta bo`lsa, uning perimetrini toping.
A) 21 sm B) 28 sm C) 56 sm D) 20 sm
4. Perimetri 36 sm bo`lgan uchburchakning o`rta chiziqlaridan hosil bo`lgan uchburchakning perimetrini toping ?
A) 18 sm B) 14 sm C) 12 sm D) 24 sm
5. To`rtburchak 3 ta burchagi yig`indisi 2900. To`rtinchi burchagining qiymatini toping ?
A) 800 B) 700 C) 600 D) 500
6. Uchburchakning ikkita tashqi burchalari 1200 va 1600 ga teng bo`lsa, uning uchinchi tashqi burchagini toping.
A) 1000 B) 200 C) 800 D) 1200
7. Agar uchburchakning A, B va C burchaklari 1; 2 va 3 sonlariga proporsional bo`lsa, B burchakni toping.
A) 600 B) 300 C) 900 D) 1200
8.Burchak bissektrisasi uning tomoni bilan 150 li burchak tashkil etsa, burchakning o`zini toping?
A) 450 B) 300 ) 600 D) 900
9. Kasrlarning yig`indisini toping: .
A) B) C) D)
10. Kasrlarni ayiring:
A) B) C) D)
11. Kasrni qisqartiring: .
A) B) C) D)
12. Algebraik kasrning son qiymatini toping: , bunda a=16, b= -3.
A) 3,3 B) C) 3,5 D)
13. Surati p va q sonlarining ko`paytmasiga, maxraji esa ularning kvadratlarining yig`insiga teng bo`lgan algebraik kasrni yozing.
A) B) C) D)
14. Hisoblang: 47,8·1,5+1,8·52,2+52,2·1,5+1,8· 47,8
A) 300 B) 330 C) 150 D) 180
15. Ko`paytuvchilarga ajrating: 7a(5a-3b)-10a+6b
A) (5a+3b)(7a-2) B) (3b-5a)(7a+2) C) (3b+5a)(7a+2) D) (5a-3b)(7a-2)
16. Tenglamani yeching: (3x+2)2 - (3x-4)2=132
A) 4 B) 3 C) -5 D) -4
17. Ko`paytuvchilarga ajrating: 5(a-b)+a2(a-b)-3(b-a)
A) (a-b)(a2+2) B) (a-b)(a2-8) C) (a-b)(8-a2) D) (a-b)(a2+8)
18. Ko`paytuvchilarga ajrating: 8a3-27b3
A) (2a-3b)2(2a+3b) B) (2a+3b)2(2a-3b) C) (2a)3-(3b)3 D) (2a-3b)(4a2+6ab+9b2)
19) . Hisoblang: (533+473) : (532-53·47 +472)
A)6 B) 100 C) 600 D) 110
20. Kasrlarni ko`paytiring:
A) 15 B) C) D) 1
A) 9b2 B) b2 C) 36b2 D) 3b
21. Kasrlarni ko`paytiring:
A) a2 B)-a2 C) D)
22. Amallarni bajaring:
A) B) C) D)
23. Hisoblang:
A) 3 B) C) 9 D)
24. Kasrlarni bo`ling: : .
A) B) C) D)
25. Kasrlarni ko`paytiring: .
A) B) C) D)
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