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Mundarija
1-§. Arifmetika.......................................................................................3
2-§. Mumkin yoki mumkin emas...........................................................7
3-§. Qoldiqli bo’lish. Qoldiqlarning xossalari.......................................9
4-§. Juft va toq sonlar............................................................................12
5-§. O’yinlar..........................................................................................16
6-§. Kombinatorika................................................................................20
7-§. Sehrli orollar...................................................................................24
8-§. Dirixle printsipi..............................................................................27
Javoblar...................................................................................................35
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