hwanjai

Box # 5 if we put the +/- for each dot; white (W) , and black (B) in these boxes and treat like the numbers which only the same color can subtract each other from the column. for example calculation of the dots from middle roll boxes; 1st box 2nd box the sum box +W +W +B +W -B -B -W -B And to find the missing box regarding the same assumption above; 1st box 2nd box the sum box +W +B +B +B +B +B -B -W -W -W So, the result is box #5