1. Kamayuvchi, ayriluvchi va ayirmaning yig’indisi 2019 ga teng. Kamayuvchini toping

Test 6-sinf uchun 22.03
1.Kamayuvchi, ayriluvchi va ayirmaning yig’indisi 2019 ga teng. Kamayuvchini toping.
A)2019 B)2019/2 C)2019/3 D)
2. ko’paytmaning oxirgi raqamini toping.
A)1 B)5 C)7 D)9
3. yig’indi qaysi raqam bilan tugaydi?
A)3 B)5 C)7 D)1
4.Olmalar quritilganda o’z og’irligini 84% ini yo’qotadi., 16 kg olma qoqisi olish uchun qancha olma kerak bo’ladi?
A)110kg B)100kg C)32kg D) 64kg
5.Binoning 4-qavatigacha bo’lgan masofa binoning 2-qavatigacha bo’lgan masofadan necha marta katta?
A)4 marta B) 2 marta C) 3 marta D) 5 marta
6.10 sekundda x mm yomg’ir yog’sa, 3 soat 30minutda necha mm yom’gir yog’adi?
A)33x B)330x C)12600x D)1260x
7.2,6,12,20 ketma ketlikni keying hadini toping.
A)30 B)28 C) 32 D)26
8. Nozima uy ishiga berilgan savollarning o’rtoqlaridan so’rab yechdi. Qolgan o’rtoqlaridan so’rab yechdi. Qolgan 52 ta savolni mustqail yechdi. Nozimaga nechta savol uy ishiga berilgan?
9.33343536..7172 sonining raqamlari yig’indisini toping.
A)480 B)412 C)360 D)372
10. Ruchka qalamdan ikki marta qimmat, o’chirg’ich esa, qalamdan uch marta arzon. Agar ruchka, qalam va o’chirg’ich 2000 so’m tursa, qalam necha so’m turadi?
11.Kitobning narxi 15% ga oshdi. Ma’lum muddatdan keyin uning narxi 15 %ga kamaydi.Dastlabki narx 3600 so’m bo’lgan bo’lsa kitob hozir necha so’m?
A) 4100 B)3600 C) 3519 D)4635
12.Uchta sonning o’rta arifmetigi 12,5 ga teng.Bu 3 ta son qatoriga ya bir son qo’shilib o’rt arifmetik hisoblangan edi u 13,2 chiqdi. Qo’shilgan son nechaga teng?
A)15,3 B)14,6 C)13,3 D)12,85
13.Tenglamani yeching :
A)4,7 B)3,07 C)5,5 D)3,7
14. Ko`paytuvchilarga ajrating: 4a³ + 32.
A) 4(a – 2)(a² + 2a +4) B) 4(a + 2)(a² - 2a + 4) C) (4a + 2)(a² - 8) D) (4a + 2)(a² – 8)
15. Ifodani qisqa ko`paytirish formulalaridan foydalanib, ikkihad shaklida yozing: (x - 7)(x² + 7x + 49).
A) x³ + 343 B) x³ - 343 C) x³ + 243 D) x³ - 243
16. Ko`paytuvchilarga ajrating: 16a² – 72a + 81.
A) (4a-3)(4a+3) B) (4a-9)(4a+9) C) (16a – 81)(16a +81) D) (4a – 9) ²
17. Hisoblang: 19,4² – 19,3².
A) 38,7 B) 3,87 C) 0, 387 D) 0,01
18. Soddalashtiring: (c-3)² – (c+3)².
A) -6c B) 2c² – 6c C) 2c² – 6c +18 D) -12c
19. Ko`paytirishni bajaring: (x² - 1)(x -1)(x+1)
A) x⁴+1 B) x⁴ – 1 C) x⁴ – 2x² + 1 D) x⁴ + 2x² + 1
20. O`xshash hadlarni ixchamlang: 5a² + 4b² + 3a² - b² .
A) 11a²b² B) 2a²-3b² C) 8a² + 3b² D) 6a²b².
21. Hisoblang: (53³+47³) : (53²-53·47 +47²)
A)6 B) 100 C) 600 D) 110
22. 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)
23. Tenglamani yeching: (3x+2)² - (3x-4)²=132
A) 4 B) 3 C) -5 D) -4
24. Algebraik kasrning son qiymatini toping: , bunda a = 16, b= -3.
A) B) 99 C) 93 D) 49,5
25. Hisoblang: 17∙ − ∙14 .
A) 4 B) 2 C) D) 8
26. Hisoblang: 29,7² – 19,7 ².
A) 100 B) 48, 4 C) 49, 4 D) 494
27. Tenglamaning ildizlarini toping: x² – 256 = 0.
A) 16 va -1 B) 16 va – 16 C) 16 D) -16
28. Quyidagi tengliklardan qaysi biri to’g’ri?
a) (a+b)c=ac + bc b) (a+b)c=a+bc c) (a+b)c=ac+b
29. Ifodani standart shakliga keltiring: (-14)a²c³b⁵ c⁵b²a⁴
a) 2a⁸b⁶c¹⁵ b) –2a²b⁷c⁸ c) –2a⁶b⁷c⁸
30. Birinchi qutida x kg, ikkinchi qutida esa undan 2x+5 kg ortiq shakar bor. Ikkala qutida hammasi bo’lib necha kg shakar bor?
a) 2x b)4x+5 c) 3x+5