7-sinf algebr a I chorak

idum.uz

7-sinf
A L G E B R A


I - C H O R A K

1.Tenglamani yeching. 3x+2x=17+(-27)

a) 2 b)-2 c)3 d)4

2. To`g`ri to`rtburchakning yuzi 20, 25 dm<sup>2</sup> ga, eni 3,24 dm ga teng. Shu to`g`ri to`rtburchakning perimetrini toping.

a) 18,98 b)9,49 c)3,24 d)6,25

3. Proporsiyaning noma`lum hadini toping. 3,5:x=2,4:4,8

a) 4 b)5 c)6 d)7

4. Amallarni bajaring; :0,7

a) 1 b)2 c)3 d)4

5. Amallarni bajaring. 9,49-(1,5+0,99)

a) 7 b)6 c)5 d)4

6. Algebraik ifodaning qiymatini toping; bunda a=3, c=-1

a) 1 b)0 c)2 d)3

7. Ifodani soddalashtiring va son qiymatini toping: 7(10-x)+3 (2x-1) bunda x=-0,048

a) 025,4 b)45,20 c)67,048 d)59,10

8. Arfmetik amallarning hossalaridan foydalanib hisoblang. (4,8-0,24-1,2)

a) -0,28 b)0,49 c)0,50 d)0,28

9. Soddalashtiring. 8x-(3x-2y)-5y

a) 7x-y b)5x-3y c)8x-2y d)2y-y

10. Avval soddalashtirib kiyin uning son qiymatini toping; (3a-4b)-(2a-3b) bunda a=0,12, b=1,28

a) 1,17 b)1,16 c)1,18 d)2,1

11. Algebraik son qiymatini toping. (a-b) c bunda a=3 b=1,2 c=5
a) 9 b)8 c)7 d)6

12. a=5,1 b=4,7 bo`lsa P=2 (a+b) ifodaning son qiymatini toping.

a) 19,6 b)20 c)21 d)12,7

13. a=2,5 b=2,4 va c=3,5 bo`lsa V=abc ifodaning son qiymatini toping.

a) 20 b)21 c)19 d)18

14. a sonini shunday tanlanki 4x-3=2x+a tenglama x=0,3 ildizga ega bo`lsin.

a) 2,4 b)-1,8 c)1,8 d)-2,4

15. Tenglamani yeching. 8x-(7x+8)=9

a) 14 b)15 c)16 d)17

16. - = tenglamani yeching.

a) 15 b)14 c)13 d)12

17. Tenglamani yeching. 0,71x+1,98=0,37x-1,76

a) 11 b)10 c)9 d)8

18. Teng yonli uchburchakning perimetri 51 sm gat eng. Asos yon tomondan 6 sm uzun. Shu uchburchak yon tomonining asosiga nisbatini toping.

a) 5 b) c)7 d)-7
19. Proporsiyaning noma`lum hadini toping. 30:10=6:x

a) 1 b)2 c)3 d)4

20. Tenglamani yeching. =x

21. 5 sonining kubi qanday raqam bilan tugaydi?

22. To`g`ri to`rtburchakning bo`yi 8 smga teng. Eni bo`yidan 1,5 sm qisqa. To`g`ri to`rtburchakning perimetrini toping.

23. 12 kvadrati qanday raqam bilan tugaydi?

24. Matematikada raqamlar soni nechta?

^{25.Hisoblang. -(-3)2 (-2)3}

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7-sinf
A L G E B R A


II-CHORAK
1.Hisoblang. -5(-2)³

a) 10 b)40 c)30 d)20

2.Amallarni bajaring. (-0,1 ab²c)² (100by²)

a) 20 ab b)a²b⁵c²y² c)30 b d)10b³y²c²

3.Birhadni darajaga ko`taring. (-2a² b)³

a) -8a⁶b³ b) 8a⁶b³ c) 18a⁴b² d) -2a²b

4.Birhadni ko`pytiring. (5a) (a² b²) (-2b) (-3a)

a) 30a⁴b³ b) 20a⁴b³ c) -30a⁴b³ d) 20a⁵b⁶

5.Sonlarning asosi 2 bo`lgan daraja shaklida yozing. 1024

a) 2² b) 2⁸ c) 2¹⁰ d) 2¹¹

6.Tenglamani yeching. X^. 2⁶=2⁸

a) x b) x³ c) x² d) x⁴

7.Ifodani ko`rsatkichi 3 bo`lgan daraja shaklida yozing. -125n⁶ m⁶

a) (5² m³ n³)³ b) 5³ n⁶ m⁶ c) -5³ m⁶ n⁶ d) (-5 n² m²)³

8.Hisoblang. . .

a) 7² b) 6² c) d)

9.Ifodani daraja shaklida yozing.

a) a² b) a^n-1 c) a^5n-1 d) a⁵ⁿ

10.Birhadlarni ko`paytiring. (-a) (3b) (4a²b) (5ab²)

a) -60a³ b⁴ b) -60a⁴ b⁴ c) 30a⁴ b³ d) 60 ab

11.Birhadni darajaga k`otaring. (-3x³ y)²

a) 9x⁶ y² b) -9x⁵ y² c) 6x⁶ y² d)-6 x⁶ y²

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

a) 1 b) 0 c) 4 d) 5
13.Ko`phadni standart shakliga keltiring. 0,3c² -0,1c²-0,5c²

a) 0,9c² b) 0,4c² c) -0,3c² d) 0,6c²

14.Ko`phadni standart shakliga keltiring. -9,387a-3,89b+8,197a -1,11b -0,81a

a) -2a-5b b) 2a+5b c) 3a-4b d) 4a -3b

15.Ko`phadlarning algebraik yig`indisini toping. 11ac +13bc +17b² –(10ac+10bc-3b²)

a) ac+23bc-14b² b)ac+3bc +20b² c) ac +20bc d) ac+3bc +10b ²

16.Ifodani soddalashtiring. -2 (3x-2y)-5 (2y-3x)

a) x-y b)-9x+6y c) 6x-3y d) 9x-6y

17.Algebraik ifodaning qiymatini toping: 7 (4a+3b)-6 (5a+7b) bunda a=2, b=-3

a) 62 b)61 c) 59 d) 60

18.Ko’phadlarni ko’paytiring; (m+6) (n-1)

a) mn+6 b) mn+6-1 c) mn-1+6 d) mn+6n-m-6

19.Bo’lishni bajaring; -6,4xy(-4x)

a) 1,6y b) 16x c) 16y d) -1,6y

20.Bo’lishni bajaring; (15z):(5z)

21.Ifodani daraja ko’rinishida tasvirlang; 5^3.5²

22. a sonining kubining yozing.

23. Odamning yuragi 1 minutda o`rtacha 75 marta ursa, uning yuragi 5 minutda necha marta uradi?

24. 13 sonining kvadrati qanday son bilan tugaydi?

25. Birhadlarni ko`paytiring; (4a²) (6a³)

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d

c

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a

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c

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a

3

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375

9

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Fan o’qituvchisi Ibragimova Zarifa
7-sinf ALGEBRA
III-CHORAK
1.Umumiy ko`paytuvchini qavsdan tashqariga chiqaring. 15x⁵-5x³

a) 5(3x⁵-x³) b) 5x³(3x²-1) c) 5x⁵(3-1) d) 3(5x-5)

2.Hisoblang. 25^.734-25^.726

a) 200 b) 300 c) 400 d) 500

3.Tenglamani yeching. (2x+1)²-(2x-3)²=4(7x-5)

a) x=5 b) x=4 c) x=1 d) x=2

4.Hisoblang. 14,7^. 13-2^.14,7+13^.5,3-2^.5,3

a) 100 b) 200 c) 210 d) 220

5.Qisqa ko`paytirish formulasidan foydalanib amallarni bajaring. 51²

a) 2500 b) 2599 c) 2600 d) 2601

6.Qisqa ko`paytirish formulasidan foydalanib amallarni bajaring. 72²

a) 5120 b) 5176 c) 5184 d) 5200

7.Tenglamani yeching. (y-2)(y+3)-(y-2)²=5

a) y=3 b) y=2 c) y=0 d) y=1

8.Ko`paytirishni bajaring. (a-3)(a+3)

a) a²+9 b) a²-9 c) a+9 d) a-3

9.Qisqa ko`paytirish formulalaridan foydalaning hisoblang. 43^.37

a) 1591 b) 1500 c) 1590 d) 1600

10.Ko`paytuvchilarga ajrating. (a-3b)² –(3a+b)²

a) b) c) d) 4(2a-b) (-a-2b)

11. Ko`paytuvchilarga ajrating. 64-125y³

a) (4-5y)(16+20y+25y²) b) (4-5y)(16+5y²) c) (4+5²) (16-5y) d) 8²-5³ y³

12. Hisoblang. 37²+126^.37+63²

a) 1000 b) 10 000 c) 500 d) 800

13. Ifodani qiymatini toping. (2x-1)(4x²+2x+1)-4x(2x²-3) bunda x=0,5

a) 3 b) 6 c) 5 d) 7
14. Tenglamani yeching. (x-3)(x²+3x+9)-x(x+4)(x-4) =21

a) x=0 b) x=1 c) x=2 d) x=3

15.27²-14² soni 13 ga bo`linishini isbotlang.

a) 40 b) 41 c) 39 d) 38

16. Motorli qayiq oqim bo`yicha 18 km soat, oqimga qarshi tezligi esa 14 km soat. Daryo oqimini tezligi va qayiqning turg`un suvdagi tezligini toping.

a) 2 km soat, 16 km soat b) 3 km soat, 4 km soat

c) 6 km soat d) 8 km soat, 7 km soat

17. Hisoblang. 16,9²-16,9^.3,7-16,9^.3,2

a) 169 b) 1,69 c) 1,69 d) -1,69

18. Ifodani son qiymatini toping. a³-a²b-3a+3b bunda a=2,5; b=-1,5

a) 12 b) 13 c) 11 d) 10

19. Tenglamani yeching. (3x+2)²-(3x-4)²=132

a) 3 b) 4 c) 2 d) 1

20. Tenglamani yeching. 81x²-(4-9x)²=56

21. Hisoblang.
22. Sonlarni asosi 3 bo`lgan daraja shaklida yozing. 729;

23. Hisoblang. 2(-3)²

24. Hisoblang. (-5)^2.
25. Tenglamani yeching. 1,3x-3,5x=11^.(-0,5)

^Savol

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b

a

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d

c

a

b

a

d

a

b

c

d

b

a

a

b

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6

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18

15

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