1. Natural sonlar. Narsalarni sanashda ishlatiladigan sonlar natural sonlar


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Matem 1 dars

8. Natural sonlarni bo’lish. a : b = с Bu yozuvda a - bo‘linuvchi, b - bo'luvchi va bo‘lish natijasi с - bo'linma deb ataladi.
Har qanday sonni nolga bo'lish mumkin emas
Har qanday sonni 1 ga bo'lganda yana o'sha sonning o‘zi hosil bo'ladi.
Nolni har qanday natural songa bo'lganda yana nol hosil bo'ladi.
Bo‘lishni bajaring: a) 512 : 16; b) 1980 : 36; d) 1530 : 15; e) 1050 : 15; f) 3080 : 5; g) 2106 : 39; h) 15 655 : 31; i) 31 108 : 44.
Bo‘lishni bajaring: a) 512 : 16; b) 1980 : 36; d) 1530 : 15; e) 1050 : 15; f) 3080 : 5; g) 2106 : 39; h) 15 655 : 31; i) 31 108 : 44
Bo‘lishni «burchak» usulidan foydalanmasdan bajaring. Natijani ko‘paytirish yordamida tekshiring:
a) 254 254 : 254; b) 363 636 : 36; d) 656 565 : 13; e) 90 045 015 : 15; f) 600 900 300 : 30; g) 350 175 070 : 35
9.Natural sonlar ustida 4 amal.
Amallarni bajaring: a) 12 • 2 + 48 : 4= d) 81 : 9 + 15 • 9= b) ((144: 4): 9) : 2 + 5= e) 100 + 99 • 100= f) 70 • 10 - 10 • 55= g) (48 : 12 + 64 : 4): 5=
Amallarni bajaring: a) 34-8 - 1218:(1866 - 24-27)= b) 68-3 + 6048:(7974 - 86-81)= c) 42-24 - 6024:(1488 - 29-34)= d) 81-19 + 9680:(1866 - 41-16)= e) (7380 + 309 • 28) : 32 + 4356 : (3902 - 2813)= f) (5145 : 15 + 945 : 45) • 3 - ( 572 : 13 - 513: 27)= g) (8345 + 655) : 150 • 13 - 1000 : (48 • 3 + 56)= h) 1710 : 18 + 4 • (8406 : 9 - 1422 : 3)=
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