Nine digits are:-4,-3,-2,-1,0,1,2,3,4 Sum of Odd digits:(-3)+(-1)+1+3=0 Sum of Even digits:(-4)+(-2)+0+2+4=0
In the following sum the digits 0 to 9 have all been used, O = Odd, E = Even, zero is even and the top row's digits add to 9. Can you determine each digit?