Can you find out the number that should replace the question mark with a valid reason?
The number 0 The 2 numbers of each slide and the 2 numbers of the opposite slide form 25 3+11+4+7 = 25 10+1+9+5 = 25 11+6+2+6 = 25 8+5+12+? = 25 ? = 0
Which number should replace the question mark?
Which number should replace the question mark in the picture below ?
