I o’zining teskarisiga teng bo’lgan natural sonni toping. A b c d 8 2

19. Tenglamani yeching:
A) 1 B) 2 C) 3 D) 4
20. tengsizliklar sistemasini qanoatlantiruvchi nechta butun son mavjud? A) 4 B) 5 C) 7 D) 8
21. tengsizlikni qanoatlantiruvchi nechta tub son mavjud. A) 1 B) mavjud emas C) 3 D) cheksiz ko’p

1. 8 ga bo’lganda qoldiq va bo’linma teng bo’ladigan eng katta sonni toping. A) 90 B) 64 C) 63 D) 56

2. Hisoblang:
A) B) 3 C) - 3 D)
3. tenglamaning ildizlari yig’indisini toping.
A) B) C) 7 D)
4. 1 dan gacha bo’lgan natural sonlarni ketma-ket yozish orqali hosil qilingan son 45 xonali bo’lsa, ni toping.
A) 36 B) 30 C) 45 D) 27
5. Maxraji 100 ga teng bo’lgan to’g’ri kasrlardan nechtasi qisqarmaydi?
A) 50 B) 40 C) 41 D) 39
6. Hisoblang:
A) 5 B C) 25 D)
7. Tenglamani yeching:
A) 2 B) 1 C) D)
8. Quyidagilardan faqat bittasi tub son bo’lsa, u qaysi javobda?
A) 235 B) 411 C) 649 D) 467
9. Tenglamaning ildizlari yig’indisini toping:
A) 3 B) 1 C) - 3 D) -1
10. Musbat sonlar uchun
va bo’lsa, ni toping. A) 7 B) 3 C) 4 D) 5
11. 2393625263 sonidan 5 ta raqam shunday o’chirilganki, natijada qolgan son eng katta bo’ldi. O’chirilgan raqamlar yig’indisini toping.
A) 16 B) 14 C) 15 D) 12
12. Soddalashtiring: (
A) 3 B) 4 C) 2 D) -3
13. sonlar juftligi sistemaning yechimi bo’lsa, ni toping.
A) -4 B) 6 C) 5 D) -5
14. tenssizlikning eng kichik butun yechimini ko’rsating. A) 2 B) -1 C) 0 D) 1
15. soniga qanday eng kichik musbat son qo’shilganda, yig’indi 5 ga qoldiqsiz bo’linadi?
A) 2 B) 4 C) 1 D) 3
16. bo’lsa, ning qiymatini toping.
A) 4 B) 3 C) D)
17. Hisoblang :
A) B) C) D) 1
18. To’rt xonali sonning raqamlari 3 tadan kamayib boradi. Bu sonning raqamlari yig’indisini toping.
A) 18 B) 15 C) 22 D) 21
19. ning qanday qiymatlarida tenglamaning ildizlaridan biri 1 ga teng bo’ladi?
A) B) C) D)
20. tenglik ayniyat bo’lsa, musbat va larni toping.
A) B)
C) D)
21. ifodaning qiymatini toping.
A) B) 1 C) D) 49
22. bo’lsa, ni toping.
A) B) C) D) 2
23. Eng kichik sonni ko’rsating. A) B) C) D)
24. ifodaning qiymatini bo’lganda hisoblang.
A) B) 7 C) D)
25. Modulli tengsizlikni yeching:
A) B) C) D)
26. Ifodani soddalashtiring: A) 0 B) C) D) 23
27. Raqamlar yig’indisi 2 ga teng bo’lgan nechta 5 xonali son bor? A) 4 ta B) 6 ta C) 3 ta D) 5 ta
23. O’suvchi arifmetik progressiyaning dastlabki uchta hadi yigindisi 21 ga, kvadratlari yig’indisi esa 179 ga teng. Uning dastlabki o’nta hadi yig’indisini toping. A)200 B) 210 C) 220 D)230
24. Arifmetik progressiya dastlabki 6 ta hadi yig’indisi 63 ga, oxirgi 6 ta hadi yig’indisi esa 279ga teng. Barcha hadlari yig’indisi 513 ga teng bo’lsa, uning nechta hadi bor?
A) 16 B) 18 С) 20 D) 22
25. Arifmetik progressiya n ta hadining yig’indisi
bo’lsa, progressiyaning ayirmasini toping.
A) 5 B) 6 С) 7 D) 8