72 = 4 + 68 ( 4 : 4 = 1; 68 : 4 = 17 )
72 = 8 + 64 ( 8 : 4 = 2; 64 : 4 = 16 )
72 = 12 + 60 ( 12 : 4 = 3; 60 : 4 = 15 )
72 = 16 + 56 ( 16 : 4 = 4; 56 : 4 = 14 )
72 = 20 + 52 ( 20 : 4 = 5; 52 : 4 = 13 )
72 = 24 + 48 ( 24 : 4 = 6; 48 : 4 = 12 )
72 = 28 + 44 ( 28 : 4 = 7; 44 : 4 = 11 )
72 = 32 + 40 ( 32 : 4 = 8; 40 : 4 = 10 )
72 = 36 + 36 ( 36 : 4 = 9 )
72 = 4 + 68 ( 4 : 4 = 1; 68 : 4 = 17 )
72 = 8 + 64 ( 8 : 4 = 2; 64 : 4 = 16 )
72 = 12 + 60 ( 12 : 4 = 3; 60 : 4 = 15 )
72 = 16 + 56 ( 16 : 4 = 4; 56 : 4 = 14 )
72 = 20 + 52 ( 20 : 4 = 5; 52 : 4 = 13 )
72 = 24 + 48 ( 24 : 4 = 6; 48 : 4 = 12 )
72 = 28 + 44 ( 28 : 4 = 7; 44 : 4 = 11 )
72 = 32 + 40 ( 32 : 4 = 8; 40 : 4 = 10 )
72 = 36 + 36 ( 36 : 4 = 9 )