7-sinf Matematika 4-chorak

1

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7-sinf Matematika 4-chorak

Testni Mamadoliyev Diyorbek tayyorladi.

1 / 25

Birhadning son qiymatini toping: 0.5*a²b³c , bunda a= -2, b= -1,  c=10.

2 / 25

Soddalashtiring: (c-3)2 – (c+3)(3-c)

3 / 25

To`rtburchak ichki burchaklari yig`indisi necha  gradusga teng ?

4 / 25

Kasrlarning ayirmasini toping

5 / 25

Hisoblang: 139∙15 + 18∙139 + 15∙261 + 18∙261.

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Algebraik kasrning son qiymatini toping: (a-b)/(a+2b), bunda a=16, b= -3.

7 / 25

Ko`paytirishni bajaring: (x2 + 1)(x -1)(x+1)

8 / 25

Hisoblang:  (12a4b3 +21a2b4) : 3a2b3

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a=10, b=8 bo‘lganda  algebraik kasrning son qiymatini toping?

10 / 25

Kasrlarni ko‘paytiring:

11 / 25

Algebraik kasrlarni ayiring:

12 / 25

Kasrni qisqartiring:

13 / 25

Algebraik ifodaning qiymatini toping: 3a + 2b, bunda a = 3, b = -5.

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Otasi 38 yoshda, o`g`li esa 12 yoshda. Necha yildan keyin otasi o`g`lidan ikki marta katta bo`ladi ?

15 / 25

Amallarni bajaring: 12,42 + (4,234 - 2,42).

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Tenglamani yeching:

17 / 25

a sonni shunday tanlangki, 3x - 4 = a - 2x tenglama x = 1 ildizga ega bo`lsin

18 / 25

Yig`indisi 84 ga teng bo`lgan ikkita ketma-ket toq sondan kichigini toping.

19 / 25

Ko`phadning son qiymatini toping: x2 +2xy +y2, bunda x = 1,2, y = -1,2.

 

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Hisoblang:

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To`g`ri chiziqning ixtiyoriy nuqtasidan unga nechta perpendikulyar to`g`ri chiziq o`tkazish mumkin ?

22 / 25

Teng yonli uchburchakning asosi yon tomonidan 3 birlikka kam, perimetri 36 ga teng bo`lsa uchburchakning yon tomonini toping.

23 / 25

Teng yonli uchburchakning perimetri 48, yon tomoni 18 ga teng. Uning asosini toping

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Uchburchakning bir uchi va shu uchining qarshisidagi tomon o`rtasini tutashtiruvchi kesma nima deb ataladi

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n ning qanday qiymatida tenglik to`g`ri bo`ladi:

0%

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

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