Give Me Your Numberblock OC and I wil turn it into an Undecimal Numberblock. Undecimal is base 11 Chart: 1=1 2=2 3=3 4=4 5=5 6=6 7=7 8=8 9=9 10=A (Spelt Abb, Pronounced Ab) 11=10 12=11 13=12 14=13 15=14 16=15 17=16 18=17 19=18 20=19