Page 65 - Numbertheory

@ @óáÕÜa@óïÝibÔ@

4 + 5 + 6 + 7 + 8 = 30 3 + 4 + 5 + 6 = 18 2+ 3+ 4 = 9

. 5 + 6 + 7 + 8 + 9 + 0 = 35

. 567890 3

86x y [BritishJMC 1997] ( )

9( ) x +y .5 4 3

7( ) 6( ) 4 ()

y4 : ()
.
y =0 5
.y =0
3 .y =5

.3 8 + 6 + x + 0 = 14 + x

8640 8610 . x =7 x =4 x =1
. 8670
. 8640 4
.x +y =4+0=4

7 7000010 [BritishJMC 1999] ( )

4( ) 3( ) 2( ) 1 ()

:( )

٥٢