1- mavzu: Natural sonlarning o`qilishi va yozilishi


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1 8, 9, 15, 13, 16, 17, 31, 35, 37 sonlarining qaysilari tub sonlar?

qaysilari murakkab sonlar?

2 Tengsizlikning tub sonlardan iborat yechimlarini toping ?

1) 15< z ≤ 43 2) 18 < y < 50



3 17, 22, 31, 35, 41, 47, 241, 208, 311 sonlarining qaysilari tub sonlar? qaysilari murakkab sonlar?
4 70 dan 100 gacha bo`lgan sonlar orasida joylashgan murakkab va tub sonlarni alohida – aolhida yozib chiqing
5 80 ning hamma bo`luvchilarini toping. Ulardan tub bo`lganlarini alohida yozing.
6 30 dan kichik tub sonlarni yozib chiqing.
7 Quyidagi sonlarning natural bo`luvchilari nechta.

1) 258 2) 54 3) 100 4) 45

5) 1154 6) 29 7) 2880 8) 863

9) 183 10) 846 11) 265 12) 16
8 Qaysi juftlik o`zaro tub sonlardan iborat :

1) 25 va 34 2) 8 va 54 3) 12 va 15 4) 45 va 6

5) 11 va 28 6) 25 va 36 7) 21 va 10 8) 8 va 14

9) 18 va 15 10) 21 va 14 11) 26 va 15 12) 45 va 16
9 Quyidagi sonlarning natural bo`luvchilari yig`indisini toping.

1) 256 2) 56 3) 200 4) 75

5) 154 6) 19 7) 1440 8) 863

9) 282 10) 846 11) 25 12) 16




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