ANSWER: 25 1+2+3=6+4=10 2+3+4=9+4=13 4+5+6=15 +4 =19 5+6+7=18 +4 =22 6+7+8=21 +4 = 25
26 1+2+3+4=10 2+3+4+4= 13 4+5+6+4=19 6+7+8+4=26
If 5 + 4 => 9 3 + 5 => 9 9 + 1 => 9 1 + 6 => 8 4 + 2 => 8 1 + 7 => 7 5 + 6 => 6 3 + 7 => 3 7 + 0 => 0 Then 8 – 1 => ??