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. 1097 .Y = 9 Y =8
994
. X =8 )
1 + 5 + 10 + 20 = 36
.YYZ
:( ) (
. 36 ×100 = 72%
50
.x :( ) ( )
.3×x ÷ 3 = 3×x ×5 = 5×x ) ()
()
4 54 34
4 :(
37
4 = 0.108108108
37
.3
.(1 )
:( )
6545 = 5 × 7 ×11×17 = (5 ×17)×(7 ×11) = 85 × 77 ()
. 85 + 77 = 162
36 :( )
1, 2, 3, 4, 6, 9,12,18, 36 :( ) ()
. 3 4,12, 36
1