8-9 sinflar uchun matematika variant I 1-15 savollar qiyinlik darajasi Har bir to`g`ri javob 2,1 ball bilan baholanadi

16-25 savollar- qiyinlik darajasi 2. Har bir to`g`ri javob 3,2 ball bilan baholanadi.

16) 2021! soni nechta nol bilan tugaydi?

A) 1000 B) 200 C)603 D) 503

17. 
    Markazi (0; 0) nuqtada bo`lgan aylanadagi A (0; 2) nuqtani soat mili harakati yo`nalishida aylana bo`ylab 60<sup>0</sup> ga burish natijasida hosil bo`lgan nuqtaning koordinatalari yig`indisini toping.
    

A) 1 B) 1- C) 1+ D) 2

18) Rombning diagonallari 2 va 3 bo`lsa, unga ichki chizilgan doiraning yuzini toping.

A) π B) π C) π D) π

19) To`g`ri burchakli uchburchakning o`tkir burchagi 60<sup>0</sup>. Shu burchakka yo`pishgan kateti uzunligi 2 cm ga teng bo`lsa, uning eng katta medianasi uzunligini (cm) toping.

A) 13 B) 2 C) 3 D)

20) Agar ( +1)=1 bo’lsa, (x+y)² ning qiymatini toping

A) 9 B) 25 C)16 D) 0

21) Hisiblang

A) 1 B) 2 C)6 D) 4

22) 125⁶ ·15⁴ ·2048² ko’paytmaning qiymati nechta xonali son bilan tugaydi.

A) 22 B) 24 C)26 D) 34

23) Tenglamani yechimlar yig’indisini toping. (x²-2021²)² -8084x -1=0

A) 4042 B) 4000 C)2021 D) 4041

24) Dastlabki uchta raqamining yig’indisi 20 ga oxirgi uchta raqamining yig’indisi esa 17 ga teng bo’lgan turli to’rt honali sonlar nechta .

A) 18 B) 28 C)16 D) 35

25) Bir guruhda 3 ta qiz ikkinchi guruhda 3 ta yigit bor bir qiz va bir yigitni necha xil usulda tanlasa bo’ladi

A) 10 B) 20 C)6 D) 9