discrete unit one rules

#2 The last digit of the number ends in o, 2, 4, 6, or 8

516 is divisible by 2 because the last digit is 6

#9 sum of all digits divided by 9

549 5+4+9=18 18/9

#8 last 3 digits divide by 8

6,427,120 120/8

#4 last two digits are divisible by 4

1,268,416 16/4

#3 sum of all digits is divisible by 3

168 1+6+8=15 15/3=5

#6 divide by 3 rule or divide by 2

168/2 =84 1+6+8= 15/3

#10 ends in 0

210

#12 must follow 3 or 4 rule

216 2+1+6=9 9/3 16/4

#5 ends with 5 or 0

255 250