1-variant Hisoblang Ifodani qiymatini toping

7-sinflar uchun bilimlar bellashuvi savollari
1-variant
1.Hisoblang



2.Ifodani qiymatini toping
_{ } bunda a=4,b=2 ,c=10,k=5


3.Tenglamani yeching
3(x-1)-2(x+2) +4x+8


4.2 ta kesishgan to’g’ri chiziqlar 3 va 7 nisbatda qo’shni burchaklar hosil qilishgan. Shu qo’shni burchaklarni toping?


5.Yog’ochni 3 bo’lakka bo’lish uchun 14 minut kerak . Shu yog’ochni 4 bo’lakka bo’lish uchun necha minut kerak?


Ekspert guruhi

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7-sinflar uchun bilimlar bellashuvi matematika test

1. 7 raqami ishtirok etgan barcha ikki xonali sonlar nechta? A)10 ta B) 19 ta C) 9 ta D) 18 ta

2. 39+n_{ }tengsizlikni qanoatlantiruvchi natural sonlar ichidan eng kattasi qaysi?
A) 1 B) 11 C) 10 D) 9
3. Qaysi tenglik qoldiqli bo’lishni ifodalaydi. A) 29=6_{ } 5-1 B) 29=5_{ }5+4 C) 29=4_{ } 5+9 D) 29=3_{ } 5+14
4._{ } va _{ } sonlar orasida maxraji 36 ga teng bo’lgan nechta kasr son bor? A) 1 B) 2 C) 3 D)4
5. 3 sr 87 kg ni tonnada ifodalang: A) 3,087 B) 0,3 C)0,387 D) 3,8
6. Hisoblang: (3,91 -2,13)_{ }4,5 A) 8,01 B) 80,1 C) 80,11 D) 8,11
7. 420 soning 15 % ini toping: A)63 B)36 C) 65 D) 144
8) Amallarni bajaring: (-69 +44):(-5) A) -3 B)-5 C) 5 D) 3
9. Algebraik ifodaning qiymatini toping. _{ }x-_{ }y bunda x =8 , y= -14
A)8 B) 6 C) 2 D)4
10. Har biri x so’mdan 6 ta daftar va har biri y so’mdan 3 o’ram qog’oz sotib olindi.Hamma xarid qancha turadi. A) 6x B) 3y C) 6x+3y D)6x-3y
11.Soddalashtiring: 4a -13a+5a A) 4a B)-4a C)6a D)-6a
12. (x+3):(x-2)=5:3 tenglamaning ildizi x₀ bo’lsa, 2x₀+61 Ifodaning son qiymatini toping:
A) -80 B)70 C) 80 D) 81
13. Agar B_{ } AC, AB=7,2 sm, AC=2dm bo’lsa, BC ni toping: A) 27,2 B) 12,8 C) 10,8 D) 11,8
1 4. Burchak AOB ni toping? Burchak AOE=32⁰ burchak EOB=40

^{A E} A) 72⁰ B)12⁰ C)36⁰ D)44⁰
₃₂⁰ ₄₀⁰ B
O

1 5. Noma’lum x burchakni toping.

A) 135⁰ B)45⁰
135⁰ x C)180⁰ D)130⁰
16. Jumlalarni mohiyatidan kelib chiqib to’ldiring.
Agar qo’shni burchaklar … , ular to’g’ri burchaklar bo’ladi.
A) teng bo’lsa, B) katta bo’lsa, C) kichik bo’lsa, D) A va B javoblar to’g’ri
17. Uchburchakning burchaklari nechta? A)3 ta B)4 C) 2 D) 1
18. Ikkita to’g’ri chiziqning kesishishidan hosil bo’lgan 3 ta burchakning yig’indisi 315⁰ ga teng.Shu burchaklardan kichigini toping. A) 60⁰ B)45⁰ C)70⁰ D)85⁰
19. Ko’phadning son qiymatini toping: x²-2xy+y² bunda x= y= -4,2
20. Tenglamani yeching:_{ } =4-_{ }
21. Ifodani soddalashtiring: _{ } a²-b²+_{ } a²- _{ } b²
22. O’g’li 6 yoshda otasi esa undan 6 marta katta. Necha yildan keyin o’g’li otasidan 4 marta yosh bo’ladi.
23. Perimetri 28 sm ga teng bo’lgan teng yonli uchburchakning asosi yon tomonidan 4 sm uzun. Shu uchburchakning tomonlarini toping.
24. Ikki to’g’ri chiziqning kesishishidan hosil bo’lgan burchaklardan 2 tasining yig’indisi 120⁰. Bu burchaklarni toping.
25. Qo’shni burchaklardan biri ikkinchisidan 52⁰ ga katta. Shu burchaklardan kattasini toping.


Ekspert guruhi

1. 
   ______________________ ____________ ___________________
   

2. 
   ______________________ ____________ ___________________
   

3. 
   ______________________ ____________ ___________________